10.57647/j.jtap.2024.1805.69
Optical output simulation for improved performance of CH3NH3PbBr3 and CH3NH3Pb(Br1−xClx)3 perovskite-based LEDs (PeLED)
- Hadj Barkat Kaarour*
1 - Belabbas Soudini1
- Applied Material Laboratory (AML), Djillali Liabes University of Sidi Bel Abbes, Algeria
Received: 2024-07-17
Revised: 2024-09-18
Accepted: 2024-09-27
Published in Issue 2024-10-30
Copyright (c) 2024 Hadj Barkat Kaarour, Belabbas Soudini, Hamza Abid (Author)
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
The purpose of this paper is to analyse and optimize CH3NH3PbBr3-based perovskite lightemitting
diodes (PeLEDs) using Silvaco-Atlas, with the aim of improving the optical output of
these devices by varying the thickness of the active perovskite layer. The performance of the
PeLEDs was thoroughly investigated, and the results indicate that the most significant improvement
in luminescence occurs when the thickness of the perovskite layer is between 5 and 20 nm. In
addition, the paper presents an analysis of the structural and optical properties of AB(Br1−xClx)3,
a perovskite semiconductor tunable with respect to the band gap energy, where A represents
CH3NH+3 , B represents Pb+2, and x ranges from 0 to 1. Furthermore, the study focuses on the
successful incorporation of these materials into green and blue-emitting perovskite semiconductors
that operate efficiently at room temperature, and analyses their applications in LEDs by examining
the Full Width at Half Maximum (FWHM) values and comparing them with previous experimental
studies.
Keywords
- Perovskite light emitting diode,
- Trap density of state,
- SRH recombination,
- Band-gap,
- Silvaco-Atla