10.1007/s40089-021-00349-7

Synthesis, properties and uses of ZnO nanorods: a mini review

  1. Scientific Research Centre, Soran University, Soran, 44008, IQ
  2. Department of Physics, College of Education, Salahaddin University-Erbil, Erbil, IQ Physics Education Department, Faculty of Education, Tishk International University, Erbil, IQ

Published in Issue 2021-07-28

How to Cite

Aspoukeh, P. K., Barzinjy, A. A., & Hamad, S. M. (2021). Synthesis, properties and uses of ZnO nanorods: a mini review. International Nano Letters, 12(2 (June 2022). https://doi.org/10.1007/s40089-021-00349-7

Abstract

Abstract Zinc oxide (ZnO) nanorods have been extensively investigated, owing to their extraordinary applications in numerous fields, spatially microchip technology, solar cells, sensors, photodetectors, photocatalysts and many others. Recently, using ZnO nanorods, as photocatalysts, are receiving increasing attention in environmental defense applications. This mini review summarizes some remarkable applications for ZnO nanorods. First, the various chemical and physical procedures that were used to produce ZnO nanorods are identified through symmetric matrices and heterogeneous structures, then the authors explain how to use these methods to produce ZnO nanorods. This mini review, also, discusses the applications of ZnO nanorods in many fields, especially in field release, emission properties, and electron transference. Last but not least, the appropriate conclusions for future research using ZnO nanorods have been successfully explained.

Keywords

  • ZnO nanorods,
  • Vapor phase process,
  • MOCVD process,
  • Luminescence,
  • Field emission,
  • Gas sensor,
  • Field effect transistors

References

  1. Pokropivny and Skorokhod (2007) Classification of nanostructures by dimensionality and concept of surface forms engineering in nanomaterial science 27(5–8) (pp. 990-993) https://doi.org/10.1016/j.msec.2006.09.023
  2. Su et al. (2012) The art of aligning one-dimensional (1D) nanostructures 41(23) (pp. 7832-7856) https://doi.org/10.1039/c2cs35187k
  3. Li (2016) Low-dimensional transition metal dichalcogenide nanostructures based sensors 26(39) (pp. 7034-7056) https://doi.org/10.1002/adfm.201602136
  4. Ghassan, A.A., Mijan, N.-A., Taufiq-Yap, Y.H.: Nanomaterials: an overview of nanorods synthesis and optimization. In: Nanorods and Nanocomposites, Chapter 2, vol. 11, no. 11, pp. 8–33. IntechOpen (2020)
  5. Abdulrahman (2021) Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods 11(3) https://doi.org/10.3390/nano11030677
  6. Lebepe et al. (2020) Graphene oxide-coated gold nanorods: synthesis and applications 10(11) https://doi.org/10.3390/nano10112149
  7. Pellas (2020) Gold Nanorods for LSPR biosensing: synthesis, coating by silica, and bioanalytical applications 10(10) https://doi.org/10.3390/bios10100146
  8. Frascaroli (2015) Resistive switching in high-density nanodevices fabricated by block copolymer self-assembly 9(3) (pp. 2518-2529) https://doi.org/10.1021/nn505131b
  9. Fried (2018) Challenges in fabricating graphene nanodevices for electronic DNA sequencing 8(3) (pp. 703-711) https://doi.org/10.1557/mrc.2018.187
  10. Euler (2020) A deep-learning approach to realizing functionality in nanoelectronic devices 15(12) (pp. 992-998) https://doi.org/10.1038/s41565-020-00779-y
  11. Rajendran (2015) Nano meets security: Exploring nanoelectronic devices for security applications 103(5) (pp. 829-849) https://doi.org/10.1109/JPROC.2014.2387353
  12. Yamai and Saito (1978) Vapor phase growth of alumina whiskers by hydrolysis of aluminum fluoride (pp. 511-516) https://doi.org/10.1016/0022-0248(78)90485-2
  13. Wagner (1964) Vapor-liquid-solid mechanism of Single crystal growth Appl (pp. 89-90)
  14. Klimovskaya et al. (1996) Influence of growth conditions on morphology, composition, and electrical properties of n-Si wires 153(2) (pp. 465-472) https://doi.org/10.1002/pssa.2211530221
  15. Okabe and Nakagawa (1979) Growth of α-Ag2S whiskers in a VLS system 46(4) (pp. 504-510) https://doi.org/10.1016/0022-0248(79)90038-1
  16. Zhang et al. (2017) Heterojunctions based on II-VI compound semiconductor one-dimensional nanostructures and their optoelectronic applications 7(10)
  17. Liu (2013) Twin-induced one-dimensional homojunctions yield high quantum efficiency for solar hydrogen generation 4(1) (pp. 1-8) https://doi.org/10.1038/ncomms3278
  18. Han (1997) Synthesis of gallium nitride nanorods through a carbon nanotube-confined reaction 277(5330) (pp. 1287-1289) https://doi.org/10.1126/science.277.5330.1287
  19. Wang (2001) Synthesis of novel SbSI nanorods by a hydrothermal method 4(7) (pp. 339-341) https://doi.org/10.1016/S1387-7003(01)00208-8
  20. Ma (2020) Cu-In2S3 nanorod induced the growth of Cu&In co-doped multi-arm CdS hetero-phase junction to promote photocatalytic H2 evolution https://doi.org/10.1016/j.cej.2020.125785
  21. Labis (2019) Designing zinc oxide nanostructures (nanoworms, nanoflowers, nanowalls, and nanorods) by pulsed laser ablation technique for gas-sensing application 102(7) (pp. 4367-4375) https://doi.org/10.1111/jace.16270
  22. Park (2017) Synthesis of ultra-small palladium nanoparticles deposited on CdS nanorods by pulsed laser ablation in liquid: role of metal nanocrystal size in the photocatalytic hydrogen production 23(53) (pp. 13112-13119) https://doi.org/10.1002/chem.201702304
  23. Jiang (2000) Elemental solvothermal reaction to produce ternary semiconductor CuInE2 (E= S, Se) nanorods 39(14) (pp. 2964-2965) https://doi.org/10.1021/ic000126x
  24. Wang (2003) Preparation and Photoluminescence of CaS: Bi, CaS: Ag, CaS: Pb, and Sr1− x Ca x S Nanocrystallites 150(3) https://doi.org/10.1149/1.1539500
  25. Ameen (2012) Vertically aligned ZnO nanorods on hot filament chemical vapor deposition grown graphene oxide thin film substrate: solar energy conversion 4(8) (pp. 4405-4412) https://doi.org/10.1021/am301064j
  26. Murkute (2018) Emerging material zinc magnesium oxide based nanorods: Growth process optimization and sensor application towards humidity detection (pp. 204-216) https://doi.org/10.1016/j.snb.2017.10.078
  27. Willander (2009) Zinc oxide nanorod based photonic devices: recent progress in growth, light emitting diodes and lasers 20(33) https://doi.org/10.1088/0957-4484/20/33/332001
  28. Mydeen (2020) Biosynthesis of ZnO nanoparticles through extract from Prosopis juliflora plant leaf: Antibacterial activities and a new approach by rust-induced photocatalysis 24(5) (pp. 393-406) https://doi.org/10.1016/j.jscs.2020.03.003
  29. Li (2013) Effects of free electrons and quantum confinement in ultrathin ZnO films: a comparison between undoped and Al-doped ZnO 21(12) (pp. 14131-14138) https://doi.org/10.1364/OE.21.014131
  30. Ding (2018) One-dimensional zinc oxide nanomaterials for application in high-performance advanced optoelectronic devices 8(5)
  31. Yildirim et al. (2015) Synthesis of uniformly distributed single-and double-sided zinc oxide (ZnO) nanocombs (pp. 34-40) https://doi.org/10.1016/j.jcrysgro.2015.08.007
  32. Senthilkumar (2018) Synthesis of ZnO nanorods by one step microwave-assisted hydrothermal route for electronic device applications 29(4) (pp. 2927-2938) https://doi.org/10.1007/s10854-017-8223-5
  33. Wang (2004) Nanostructures of zinc oxide 7(6) (pp. 26-33) https://doi.org/10.1016/S1369-7021(04)00286-X
  34. Ghalandari (2020) Applications of nanofluids containing carbon nanotubes in solar energy systems: a review https://doi.org/10.1016/j.molliq.2020.113476
  35. Khairy et al. (2020) Enhancement of photocatalytic and sonophotocatalytic degradation of 4-nitrophenol by ZnO/graphene oxide and ZnO/carbon nanotube nanocomposites https://doi.org/10.1016/j.jphotochem.2020.112507
  36. Gupta (2019) Hybrid composite mats composed of amorphous carbon, zinc oxide nanorods and nickel zinc ferrite for tunable electromagnetic interference shielding (pp. 447-457) https://doi.org/10.1016/j.compositesb.2019.01.060
  37. Srivatsa et al. (2011) Synthesis of aligned ZnO nanorod array on silicon and sapphire substrates by thermal evaporation technique 27(8) (pp. 701-706) https://doi.org/10.1016/S1005-0302(11)60129-1
  38. Navale (2020) (pp. 315-321) Springer
  39. Chrissanthopoulos (2011) Synthesis and characterization of ZnO/NiO p–n heterojunctions: ZnO nanorods grown on NiO thin film by thermal evaporation 9(2) (pp. 132-139) https://doi.org/10.1016/j.photonics.2010.11.002
  40. Li (2008) ZnO microcolumns originated from self-assembled nanorods 43(5) (pp. 1711-1715) https://doi.org/10.1007/s10853-007-2344-9
  41. Quan (2019) Nanowires for photonics 119(15) (pp. 9153-9169) https://doi.org/10.1021/acs.chemrev.9b00240
  42. Baratto (2020) On the alignment of ZnO nanowires by Langmuir-Blodgett technique for sensing application https://doi.org/10.1016/j.apsusc.2020.146959
  43. Gundiah (2003) Carbothermal synthesis of the nanostructures of Al 2 O 3 and ZnO 24(1–4) (pp. 137-146) https://doi.org/10.1023/B:TOCA.0000003085.11731.9c
  44. Kurbanov (2018) Photoluminescence properties of ZnO nanorods synthesized by different methods 52(7) (pp. 897-901) https://doi.org/10.1134/S1063782618070126
  45. Khanlary et al. (2012) Synthesis and characterization of ZnO nanowires by thermal oxidation of Zn thin films at various temperatures 17(5) (pp. 5021-5029) https://doi.org/10.3390/molecules17055021
  46. Peng et al. (1998) Kinetics of II-VI and III-V colloidal semiconductor nanocrystal growth: “focusing” of size distributions 120(21) (pp. 5343-5344) https://doi.org/10.1021/ja9805425
  47. Wang et al. (2007) Interface-mediated growth of monodispersed nanostructures 40(8) (pp. 635-643) https://doi.org/10.1021/ar600007y
  48. Mei, T., Hu, Y.: Synthesis, self-assembly and optoelectronic properties of monodisperse ZnO quantum dots. In: Optoelectronic Devices and Properties, Chapter 11, pp. 215–240 (2011)
  49. Wang (2015) Interfacial emission adjustment in ZnO quantum dots/p-GaN heterojunction light-emitting diodes 119(5) (pp. 2798-2803) https://doi.org/10.1021/jp509655j
  50. Hao (2020) Improved manufacturing processes for better materials properties—from quantum dots to bulk materials (pp. 1-2)
  51. Lan (2009) Morphology and optical properties of zinc oxide thin films grown on Si (100) by metal-organic chemical vapor deposition 20(1) (pp. 441-445)
  52. Jung et al. (2012) Substrate dependent growth modes of ZnO nanorods grown by metalorganic chemical vapor deposition 355(1) (pp. 78-83) https://doi.org/10.1016/j.jcrysgro.2012.06.046
  53. Kim (2009) ZnO nanorod arrays grown on glass substrates below glass transition temperature by metalorganic chemical vapor deposition 20(1) (pp. 245-248)
  54. Kim (2012) Effects of temperature on ZnO hybrids grown by metal-organic chemical vapor deposition 47(10) (pp. 2888-2890) https://doi.org/10.1016/j.materresbull.2012.04.099
  55. Lei and Cheng (2017) Fabrication of Ag nanoparticle/ZnO thin films using dual-plasma-enhanced metal-organic chemical vapor deposition (DPEMOCVD) system incorporated with photoreduction method and its application (pp. 220-226) https://doi.org/10.1016/j.mssp.2016.09.039
  56. Swathi (2021) Branched and unbranched ZnO nanorods grown via chemical vapor deposition for photoelectrochemical water-splitting applications 47(7) (pp. 9785-9790) https://doi.org/10.1016/j.ceramint.2020.12.119
  57. Kim (2014) Tailoring the surface area of ZnO nanorods for improved performance in glucose sensors (pp. 216-220) https://doi.org/10.1016/j.snb.2013.10.113
  58. Montenegro (2013) Non-radiative recombination centres in catalyst-free ZnO nanorods grown by atmospheric-metal organic chemical vapour deposition 46(23) https://doi.org/10.1088/0022-3727/46/23/235302
  59. Ray (2020) Surfactant and catalyst free facile synthesis of Al-doped ZnO nanorods–An approach towards fabrication of single nanorod electrical devices https://doi.org/10.1016/j.apsusc.2020.145732
  60. Mani and Rayappan (2015) Selective recognition of hydrogen sulfide using template and catalyst free grown ZnO nanorods 5(68) (pp. 54952-54962) https://doi.org/10.1039/C5RA07804K
  61. Rusli (2012) Growth of high-density zinc oxide nanorods on porous silicon by thermal evaporation 5(12) (pp. 2817-2832) https://doi.org/10.3390/ma5122817
  62. Khan (2018) Induced photonic response of ZnO nanorods grown on oxygen plasma-treated seed crystallites 8(6) https://doi.org/10.3390/nano8060371
  63. Park (2002) Metalorganic vapor-phase epitaxial growth of vertically well-aligned ZnO nanorods 80(22) (pp. 4232-4234) https://doi.org/10.1063/1.1482800
  64. Ocakoglu (2015) Microwave-assisted hydrothermal synthesis and characterization of ZnO nanorods (pp. 362-368) https://doi.org/10.1016/j.saa.2015.03.106
  65. Motevalizadeh et al. (2014) Facile template-free hydrothermal synthesis and microstrain measurement of ZnO nanorods 37(3) (pp. 397-405) https://doi.org/10.1007/s12034-014-0676-z
  66. Sutradhar (2020) Effect of hydrothermal synthesis on physical property modulation and biological activity of ZnO nanorods 6(12) https://doi.org/10.1088/2053-1591/ab4dd0
  67. Gan (2020) Springer
  68. Ungula and Swart (2020) Study on the role of growth time on structural, morphological and optical properties of un-capped and L-cyst.-capped ZnO nanorods grown on a GZO seeded thin film layer from an aqueous solution 821(459p) https://doi.org/10.1016/j.jallcom.2019.153459
  69. Vidya (2020) Photo-assisted mineralisation of titan yellow dye using ZnO nanorods synthesised via environmental benign route 2(4) (pp. 1-15) https://doi.org/10.1007/s42452-020-2537-2
  70. Farha et al. (2020) Thermal Degradation of Polystyrene (PS) Nanocomposites Loaded with Sol Gel-Synthesized ZnO Nanorods 12(9) https://doi.org/10.3390/polym12091935
  71. Yin (2004) Zinc oxide quantum rods 126(20) (pp. 6206-6207) https://doi.org/10.1021/ja031696+
  72. Stagon and Huang (2013) Syntheses and applications of small metallic nanorods from solution and physical vapor deposition 2(3) (pp. 259-267) https://doi.org/10.1515/ntrev-2013-0001
  73. Moumen (2020) One dimensional ZnO nanostructures: Growth and chemical sensing performances 10(10) https://doi.org/10.3390/nano10101940
  74. Alvi (2013) Influence of different growth environments on the luminescence properties of ZnO nanorods grown by the vapor–liquid–solid (VLS) method (pp. 158-163) https://doi.org/10.1016/j.matlet.2013.04.074
  75. Kim and Leem (2017) Catalyst-free synthesis of ZnO nanorods by thermal oxidation of Zn films at various temperatures and their characterization 17(8) (pp. 5826-5829) https://doi.org/10.1166/jnn.2017.14139
  76. Park (2002) ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor-phase epitaxy 14(24) (pp. 1841-1843) https://doi.org/10.1002/adma.200290015
  77. Goswami (2020) Graphene quantum dot-sensitized ZnO-nanorod/GaN-nanotower heterostructure-based high-performance UV photodetectors 12(41) (pp. 47038-47047) https://doi.org/10.1021/acsami.0c14246
  78. Chang (2020) Exploration of a novel Type II 1D-ZnO nanorods/BiVO4 heterojunction photocatalyst for water depollution (pp. 303-314) https://doi.org/10.1016/j.jiec.2019.12.002
  79. Bai and Mei (2020) Low amount of Au nanoparticles deposited ZnO nanorods heterojunction photocatalysts for efficient degradation of p-nitrophenol (pp. 468-476) https://doi.org/10.1007/s10971-020-05249-4
  80. Lauhon (2002) Epitaxial core–shell and core–multishell nanowire heterostructures 420(6911) (pp. 57-61) https://doi.org/10.1038/nature01141
  81. Gudiksen (2002) Growth of nanowire superlattice structures for nanoscale photonics and electronics 415(6872) (pp. 617-620) https://doi.org/10.1038/415617a
  82. Wu et al. (2002) Block-by-block growth of single-crystalline Si/SiGe superlattice nanowires 2(2) (pp. 83-86) https://doi.org/10.1021/nl0156888
  83. Björk (2002) One-dimensional heterostructures in semiconductor nanowhiskers 80(6) (pp. 1058-1060) https://doi.org/10.1063/1.1447312
  84. Björk (2002) Nanowire resonant tunneling diodes 81(23) (pp. 4458-4460) https://doi.org/10.1063/1.1527995
  85. Thelander (2003) Single-electron transistors in heterostructure nanowires 83(10) (pp. 2052-2054) https://doi.org/10.1063/1.1606889
  86. Macaluso (2020) Progress in violet light-emitting diodes based on ZnO/GaN heterojunction 9(6) https://doi.org/10.3390/electronics9060991
  87. Yusof (2020) Effect of zinc oxide nucleation on flexible bio based carbon nanotube cotton via chemical bath deposition method https://doi.org/10.1016/j.mee.2020.111439
  88. Kovalenko (2015) Prospects of nanoscience with nanocrystals 9(2) (pp. 1012-1057) https://doi.org/10.1021/nn506223h
  89. Park (2002) Metal-ZnO heterostructure nanorods with an abrupt interface 41(11A) https://doi.org/10.1143/JJAP.41.L1206
  90. Jung (2003) Fabrication and controlled magnetic properties of Ni/ZnO nanorod heterostructures 15(16) (pp. 1358-1361) https://doi.org/10.1002/adma.200305172
  91. Theerthagiri (2019) A review on ZnO nanostructured materials: energy, environmental and biological applications 30(39) https://doi.org/10.1088/1361-6528/ab268a
  92. Chaaya (2014) Tuning optical properties of Al2O3/ZnO nanolaminates synthesized by atomic layer deposition 118(7) (pp. 3811-3819) https://doi.org/10.1021/jp411970w
  93. Li (2017) Interface engineering of high efficiency perovskite solar cells based on ZnO nanorods using atomic layer deposition 10(3) (pp. 1092-1103) https://doi.org/10.1007/s12274-016-1407-0
  94. Romo-Garcia (2019) Optoelectronic attenuation behavior of Al2O3/ZnO nanolaminates grown by Atomic Layer Deposition (pp. 419-424) https://doi.org/10.1016/j.tsf.2018.11.026
  95. Goldberger (2003) Single-crystal gallium nitride nanotubes 422(6932) (pp. 599-602) https://doi.org/10.1038/nature01551
  96. An (2004) Heteroepitaxal fabrication and structural characterizations of ultrafine GaN/ZnO coaxial nanorod heterostructures 84(18) (pp. 3612-3614) https://doi.org/10.1063/1.1738180
  97. Yoon and Cho (2020) Two-step preparation and characterization of ZnO Core–Si shell coaxial nanorods 14(1) (pp. 9-16) https://doi.org/10.1007/s40094-020-00398-x
  98. Adam and Vaculovicova (2017) Nanomaterials for sample pretreatment prior to capillary electrophoretic analysis 142(6) (pp. 849-857) https://doi.org/10.1039/C6AN02608G
  99. Shen (2020) Insight into the Ga/In flux ratio and crystallographic plane dependence of MBE self-assembled growth of InGaN nanorods on patterned sapphire substrates 12(6) (pp. 4018-4029) https://doi.org/10.1039/C9NR09767H
  100. Chu (2020) Characteristics of gas sensors based on co-doped ZnO nanorod arrays 167(11) https://doi.org/10.1149/1945-7111/aba00d
  101. Jen (2020) Deposited ultra-thin titanium nitride nanorod array as a plasmonic near-perfect light absorber 10(1) (pp. 1-12) https://doi.org/10.1038/s41598-020-79399-4
  102. Park (2003) Quantum confinement observed in ZnO/ZnMgO nanorod heterostructures 15(6) (pp. 526-529) https://doi.org/10.1002/adma.200390122
  103. Parra and Haque (2014) Structural and optical properties of poly-vinylpyrrolidone modified ZnO nanorods synthesized through simple hydrothermal process 125(17) (pp. 4629-4632) https://doi.org/10.1016/j.ijleo.2014.05.030
  104. Kuang (2021) Dual-ultraviolet wavelength photodetector based on facile method fabrication of ZnO/ZnMgO core/shell nanorod arrays https://doi.org/10.1016/j.jallcom.2020.157917
  105. Yatsui (2004) Evaluation of the discrete energy levels of individual ZnO nanorodsingle-quantum-well structures using near-field ultraviolet photoluminescence spectroscopy 85(5) (pp. 727-729) https://doi.org/10.1063/1.1776338
  106. Ohtsu (2002) Nanophotonics: design, fabrication, and operation of nanometric devices using optical near fields 8(4) (pp. 839-862) https://doi.org/10.1109/JSTQE.2002.801738
  107. Kumar and Rao (2015) Zinc oxide based photocatalysis: tailoring surface-bulk structure and related interfacial charge carrier dynamics for better environmental applications 5(5) (pp. 3306-3351) https://doi.org/10.1039/C4RA13299H
  108. Wang (2004) Large-scale synthesis of six-nanometer-wide ZnO nanobelts 108(26) (pp. 8773-8777) https://doi.org/10.1021/jp048482e
  109. Park, W.I., et al.: Quantum confinement observed in ultrafine ZnO and ZnO/Zn/sub 0.8/Mg/sub 0.2/O coaxial nanorod heterostructures. In: 4th IEEE Conference on Nanotechnology, vol. 11, pp. 83–85 (2004)
  110. Li and Goldberger (2015) Atomic-Scale Derivatives of Solid-State Materials 27(10) (pp. 3549-3559) https://doi.org/10.1021/acs.chemmater.5b00691
  111. Sirkeli and Hartnagel (2019) ZnO-based terahertz quantum cascade lasers 27(2) (pp. 119-122) https://doi.org/10.1016/j.opelre.2019.04.002
  112. Mondal and Mitra (2012) Preparation of cadmium-doped ZnO thin films by SILAR and their characterization 35(5) (pp. 751-757) https://doi.org/10.1007/s12034-012-0350-2
  113. Geng (2003) Synthesis and optical properties of S-doped ZnO nanowires 82(26) (pp. 4791-4793) https://doi.org/10.1063/1.1588735
  114. Bae et al. (2004) Vertically aligned sulfur-doped ZnO nanowires synthesized via chemical vapor deposition 108(17) (pp. 5206-5210) https://doi.org/10.1021/jp036720k
  115. Wan (2004) Positive temperature coefficient resistance and humidity sensing properties of Cd-doped ZnO nanowires 84(16) (pp. 3085-3087) https://doi.org/10.1063/1.1707225
  116. Chang (2003) Synthesis, optical, and magnetic properties of diluted magnetic semiconductor Zn 1–x Mn x O nanowires via vapor phase growth 83(19) (pp. 4020-4022) https://doi.org/10.1063/1.1625788
  117. Ip (2003) Ferromagnetism in Mn-and Co-implanted ZnO nanorods 21(4) (pp. 1476-1481) https://doi.org/10.1116/1.1585069
  118. Yan (2003) Self-assembly of well-aligned gallium-doped zinc oxide nanorods 94(8) (pp. 5240-5246) https://doi.org/10.1063/1.1608473
  119. Gautam (2015) Giant enhancement of the n-type conductivity in single phase p-type ZnO: N thin films by intentionally created defect clusters and pairs (pp. 20-24) https://doi.org/10.1016/j.ssc.2015.05.011
  120. Thakur (2015) Facile synthesis of single crystalline n-/p-type ZnO nanorods by lithium substitution and their photoluminescence, electrochemical and photocatalytic properties 39(4) (pp. 2612-2619) https://doi.org/10.1039/C4NJ02255F
  121. Singh and Tripathi (2018) pn homojunction based on Bi doped p-type ZnO and undoped n-type ZnO for optoelectronic application in yellow-red region of visible spectrum (pp. 427-432) https://doi.org/10.1016/j.jlumin.2018.02.072
  122. Kwon et al. (2018) Fabrication of ZnO nanorods p–n homojunction light-emitting diodes using Ag film as self-doping source for p-type ZnO nanorods 122(22) (pp. 11993-12001) https://doi.org/10.1021/acs.jpcc.8b02330
  123. Gu et al. (2020) Vertically aligned ZnO nanorods arrays grown by chemical bath deposition for ultraviolet photodetectors with high response performance https://doi.org/10.1016/j.jallcom.2019.152346
  124. Yatskiv et al. (2015) Graphite/ZnO nanorods junction for ultraviolet photodetectors (pp. 70-73) https://doi.org/10.1016/j.sse.2014.12.018
  125. Zhou (2011) Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect 6(1) (pp. 1-6) https://doi.org/10.1186/1556-276X-6-147
  126. Ji (2020) Ultraviolet photodetectors using hollow p-CuO nanospheres/n-ZnO nanorods with a pn junction structure https://doi.org/10.1016/j.sna.2020.111876
  127. Huang (2021) Visible light-activated room temperature NH3 sensor base on CuPc-loaded ZnO nanorods https://doi.org/10.1016/j.snb.2020.128911
  128. Wang (2021) N-pentanol sensor based on ZnO nanorods functionalized with Au catalysts https://doi.org/10.1016/j.snb.2021.129888
  129. Rahimi and Yazdani (2020) Incremental photocatalytic reduction of graphene oxide on vertical ZnO nanorods for ultraviolet sensing https://doi.org/10.1016/j.matlet.2019.127078
  130. Moon (2020) van der Waals gap-inserted light-emitting p–n heterojunction of ZnO nanorods/graphene/p-GaN film 20(2) (pp. 352-357) https://doi.org/10.1016/j.cap.2019.11.022
  131. Mohammad (2020) Ultraviolet electroluminescence from flowers-like n-ZnO nanorods/p-GaN light-emitting diode fabricated by modified chemical bath deposition https://doi.org/10.1016/j.jlumin.2020.117510
  132. Abdelfatah et al. (2018) Low cost inorganic white light emitting diode based on submicron ZnO rod arrays and electrodeposited Cu2O thin film (pp. 44-47) https://doi.org/10.1016/j.mssp.2018.03.004
  133. Ahmad (2019) Recent progress and perspectives of gas sensors based on vertically oriented ZnO nanomaterials (pp. 1-27) https://doi.org/10.1016/j.cis.2019.05.006
  134. Sadighbayan et al. (2020) Biosensing based on field-effect transistors (FET): recent progress and challenges https://doi.org/10.1016/j.trac.2020.116067
  135. Tang (2020) Facile synthesis and nanoscale related physical properties of core-shell structured CuO/ZnO nanorods on Si substrate https://doi.org/10.1016/j.apsusc.2019.144903
  136. Göktaş and Göktaş (2021) A comparative study on recent progress in efficient ZnO based nanocomposite and heterojunction photocatalysts: a review https://doi.org/10.1016/j.jallcom.2021.158734
  137. Sambath (2012) Morphology controlled synthesis of ZnO nanostructures by varying pH 23(2) (pp. 431-436)
  138. Sinha et al. (2020) Growth of carbon dot-decorated ZnO nanorods on a graphite-coated paper substrate to fabricate a flexible and self-powered schottky diode for UV detection 12(29) (pp. 33428-33438) https://doi.org/10.1021/acsami.0c10484
  139. Lord (2020) Schottky contacts on polarity-controlled vertical ZnO nanorods 12(11) (pp. 13217-13228) https://doi.org/10.1021/acsami.9b23260
  140. Nam et al. (2014) Growth of ZnO nanorods on graphite substrate and its application for Schottky diode (pp. 37-41) https://doi.org/10.1016/j.jallcom.2014.05.110
  141. Pramanik (2020) Role of oxygen vacancies on the green photoluminescence of microwave-assisted grown ZnO nanorods https://doi.org/10.1016/j.jallcom.2020.156684
  142. Efafi (2020) Improvement in photoluminescence behavior of well-aligned ZnO nanorods by optimization of thermodynamic parameters https://doi.org/10.1016/j.physb.2019.411915
  143. Maldonado-Arriola et al. (2020) Photoluminescent properties of ZnO nanorods films used to detect methanol contamination in tequila https://doi.org/10.1016/j.sna.2020.112142
  144. Tamashevski (2020) Photoluminescent detection of human T-lymphoblastic cells by ZnO nanorods 25(14) https://doi.org/10.3390/molecules25143168
  145. Galdámez-Martinez (2020) Photoluminescence of ZnO nanowires: a review 10(5) https://doi.org/10.3390/nano10050857
  146. Park (2003) Excitonic emissions observed in ZnO single crystal nanorods 82(6) (pp. 964-966) https://doi.org/10.1063/1.1544437
  147. Shohany and Zak (2020) Doped ZnO nanostructures with selected elements-Structural, morphology and optical properties: a review 46(5) (pp. 5507-5520) https://doi.org/10.1016/j.ceramint.2019.11.051
  148. Gherab (2020) Fabrication and characterizations of Al nanoparticles doped ZnO nanostructures-based integrated electrochemical biosensor 9(1) (pp. 857-867)
  149. Bhati et al. (2020) Enhanced sensing performance of ZnO nanostructures-based gas sensors: A review (pp. 46-62) https://doi.org/10.1016/j.egyr.2019.08.070
  150. Rehman (2020) Modulation of secondary phases in hydrothermally grown zinc oxide nanostructures by varying the Cu dopant concentration for enhanced thermo power https://doi.org/10.1016/j.jallcom.2020.156081
  151. Tu (2017) Effect of substrate temperature on structural and optical properties of ZnO nanostructures grown by thermal evaporation method (pp. 174-179) https://doi.org/10.1016/j.physe.2016.08.017
  152. Čížek (2015) Origin of green luminescence in hydrothermally grown ZnO single crystals 106(25) https://doi.org/10.1063/1.4922944
  153. Huang (2019) Conversion mechanism of conductivity and properties of nitrogen implanted ZnO single crystals induced by post-annealing 30(5) (pp. 4555-4561) https://doi.org/10.1007/s10854-019-00745-y
  154. Matsumoto et al. (2009) Electrical and photoluminescence properties of carbon implanted ZnO bulk single crystals 267(8–9) (pp. 1568-1570) https://doi.org/10.1016/j.nimb.2009.01.128
  155. Richters (2008) Influence of polymer coating on the low-temperature photoluminescence properties of ZnO nanowires 92(1) https://doi.org/10.1063/1.2829598
  156. Liu (2010) Photoluminescence characteristics of high quality ZnO nanowires and its enhancement by polymer covering 96(2) https://doi.org/10.1063/1.3291106
  157. Huang (1897) Room-temperature ultraviolet nanowire nanolasers 292(5523)
  158. Zhang (2002) Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films 92(6) (pp. 3293-3298) https://doi.org/10.1063/1.1498958
  159. Choy (2003) Soft solution route to directionally grown ZnO nanorod arrays on Si wafer; room-temperature ultraviolet laser 15(22) (pp. 1911-1914) https://doi.org/10.1002/adma.200305327
  160. Yu (2004) Random laser action in ZnO nanorod arrays embedded in ZnO epilayers 84(17) (pp. 3241-3243) https://doi.org/10.1063/1.1734681
  161. Lorenz (2004) Cathodoluminescence of selected single ZnO nanowires on sapphire 13(1–2) (pp. 39-42) https://doi.org/10.1002/andp.200451601-208
  162. Teng (2018) Photoelectric detectors based on inorganic p-type semiconductor materials 30(35) https://doi.org/10.1002/adma.201706262
  163. Yu (2020) Metal-free carbon materials for persulfate-based advanced oxidation process: Microstructure, property and tailoring https://doi.org/10.1016/j.pmatsci.2020.100654
  164. Kurilich (2019) Comparative study of electron field emission from randomly-oriented and vertically-aligned carbon nanotubes synthesized on stainless steel substrates 37(4)
  165. Chen (2017) Length effect of carbon nanotubes on the strengthening mechanisms in metal matrix composites (pp. 317-325) https://doi.org/10.1016/j.actamat.2017.08.048
  166. Lee (2002) Field emission from well-aligned zinc oxide nanowires grown at low temperature 81(19) (pp. 3648-3650) https://doi.org/10.1063/1.1518810
  167. Park and Yi (2004) Electroluminescence in n-ZnO nanorod arrays vertically grown on p-GaN 16(1) (pp. 87-90) https://doi.org/10.1002/adma.200305729
  168. Kennedy (2017) Synthesis and enhanced field emission of zinc oxide incorporated carbon nanotubes (pp. 79-84) https://doi.org/10.1016/j.diamond.2016.12.007
  169. Chikate (2018) Spitzer shaped ZnO nanostructures for enhancement of field electron emission behaviors 8(38) (pp. 21664-21670) https://doi.org/10.1039/C8RA03282C
  170. Young et al. (2018) Improving field electron emission properties of ZnO nanosheets with Ag nanoparticles adsorbed by photochemical method 3(7) (pp. 8135-8140) https://doi.org/10.1021/acsomega.8b01041
  171. Dalvand (2015) Well-aligned ZnO nanoneedle arrays grown on polycarbonate substrates via electric field-assisted chemical method (pp. 65-68) https://doi.org/10.1016/j.matlet.2015.02.003
  172. Li (2004) Field emission and photofluorescent characteristics of zinc oxide nanowires synthesized by a metal catalyzed vapor-liquid-solid process 95(7) (pp. 3711-3716) https://doi.org/10.1063/1.1655685
  173. Pan (2010) Tip-morphology-dependent field emission from ZnO nanorod arrays 21(22) https://doi.org/10.1088/0957-4484/21/22/225707
  174. Li et al. (2004) ZnO nanoneedles with tip surface perturbations: excellent field emitters 84(18) (pp. 3603-3605) https://doi.org/10.1063/1.1738174
  175. Xu and Sun (2003) Field emission from zinc oxide nanopins 83(18) (pp. 3806-3808) https://doi.org/10.1063/1.1625774
  176. Maiti et al. (2015) Recent advances in low temperature, solution processed morphology tailored ZnO nanoarchitectures for electron emission and photocatalysis applications 17(48) (pp. 9264-9295) https://doi.org/10.1039/C5CE01130B
  177. Maiti (2014) Ambient condition oxidation of zinc foil in supersaturated solution for shape tailored ZnO nanostructures: low cost candidates for efficient electron emitter and UV-detector 16(9) (pp. 1659-1668) https://doi.org/10.1039/c3ce42041h
  178. Jaramillo-Cabanzo (2020) One-dimensional nanomaterials in lithium-ion batteries 54(8) https://doi.org/10.1088/1361-6463/abc3eb
  179. Jo (2003) Field-emission studies on thin films of zinc oxide nanowires 83(23) (pp. 4821-4823) https://doi.org/10.1063/1.1631735
  180. Xu et al. (2004) Field emission from gallium-doped zinc oxide nanofiber array 84(9) (pp. 1540-1542) https://doi.org/10.1063/1.1651328
  181. Yoo et al. (2005) Electrical and optical characteristics of hydrogen-plasma treated ZnO nanoneedles 23(5) (pp. 1970-1974) https://doi.org/10.1116/1.2037667
  182. Liu (2017) Nature-inspired structural materials for flexible electronic devices 117(20) (pp. 12893-12941) https://doi.org/10.1021/acs.chemrev.7b00291
  183. Wang (2017) Nanoionics-enabled memristive devices: strategies and materials for neuromorphic applications 3(7) https://doi.org/10.1002/aelm.201600510
  184. Singh (2020) Sensing performance of gas sensors fabricated from controllably grown ZnO-based nanorods on seed layers 55(21) (pp. 8850-8860) https://doi.org/10.1007/s10853-020-04659-7
  185. Wang (2020) Room-temperature gas sensors based on ZnO nanorod/Au hybrids: visible-light-modulated dual selectivity to NO2 and NH3 https://doi.org/10.1016/j.jhazmat.2019.120919
  186. Kasapoğlu (2021) The effect of the change in the amount of Sb doping in ZnO nanorods for hydrogen gas sensors 46(41) (pp. 21715-21725) https://doi.org/10.1016/j.ijhydene.2021.03.229
  187. Zhao (2020) Enhanced NO2 sensing performance of ZnO nanowires functionalized with ultra-fine In2O3 nanoparticles https://doi.org/10.1016/j.snb.2020.127729
  188. Miao and Lin (2020) Nanometer-thick films of aligned ZnO nanowires sensitized with Au nanoparticles for few-ppb-level acetylene detection 3(9) (pp. 9174-9184) https://doi.org/10.1021/acsanm.0c01807
  189. Gole and Murphy (2005) Biotin−streptavidin-induced aggregation of gold nanorods: tuning rod−rod orientation 21(23) (pp. 10756-10762) https://doi.org/10.1021/la0512704
  190. Husham (2017) Synthesis of ZnO nanorods by microwave-assisted chemical-bath deposition for highly sensitive self-powered UV detection application (pp. 166-173) https://doi.org/10.1016/j.sna.2017.05.041
  191. Hahm (2014) Zinc oxide nanomaterials for biomedical fluorescence detection 14(1) (pp. 475-486) https://doi.org/10.1166/jnn.2014.9099
  192. Willander et al. (2014) ZnO based potentiometric and amperometric nanosensors 14(9) (pp. 6497-6508) https://doi.org/10.1166/jnn.2014.9349
  193. Sun (2004) Shape controllable synthesis of ZnO nanorod arrays via vapor phase growth 129(12) (pp. 803-807) https://doi.org/10.1016/j.ssc.2003.11.051
  194. Ahn (2004) Photoresponse of sol-gel-synthesized ZnO nanorods 84(24) (pp. 5022-5024) https://doi.org/10.1063/1.1763633
  195. Park (2003) Schottky nanocontacts on ZnO nanorod arrays 82(24) (pp. 4358-4360) https://doi.org/10.1063/1.1584089
  196. Chang (2018) Facile fabrication of self-assembled ZnO nanowire network channels and its gate-controlled UV detection 13(1) (pp. 1-9) https://doi.org/10.1186/s11671-018-2774-0
  197. Yang (2010) Transverse piezoelectric field-effect transistor based on single ZnO nanobelts 12(39) (pp. 12415-12419) https://doi.org/10.1039/c0cp00420k
  198. Park (2004) Fabrication and electrical characteristics of high-performance ZnO nanorod field-effect transistors 85(21) (pp. 5052-5054) https://doi.org/10.1063/1.1821648
  199. Wang (2008) University of Florida
  200. Abdulrahman (2021) Effect of growth temperature on morphological, structural, and optical properties of ZnO nanorods using modified chemical bath deposition method 50(3) (pp. 1482-1495) https://doi.org/10.1007/s11664-020-08705-7
  201. Costas (2020) Photodetecting properties of single CuO–ZnO core–shell nanowires with p–n radial heterojunction 10(1) (pp. 1-12) https://doi.org/10.1038/s41598-020-74963-4
  202. Wan (2004) Fabrication and ethanol sensing characteristics of ZnO nanowire gas sensors 84(18) (pp. 3654-3656) https://doi.org/10.1063/1.1738932