Paper
13 May 2024 Efficient inverted green perovskite light-emitting diodes with high-quality perovskite film
Zhuopeng Du, Junjie Si, Hong Zhao, Zugang Liu
Author Affiliations +
Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 131594G (2024) https://doi.org/10.1117/12.3024270
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China
Abstract
Metal halide perovskites have the advantages of solution processing, high photoluminance quantum efficiency, and high charge carrier mobility. They are widely used in the field of Light-Emitting Diodes (LEDs). Inverted iodized-based perovskite LEDs (PeLEDs) with zinc oxide-based Electron Transporting Layers (ETLs) show high efficiency and long lifetime. However, the bromine-based type shows low device efficiency. The main challenge lies in the preparation of high-quality bromine-based perovskites on the zinc oxide-based ETLs. In this study, we controlled the component ratios in the bromine-based perovskite precursor to realize high-quality bromine-based perovskites on the ZnMgO ETL and achieved green PeLED with a peak External Quantum Efficiency (EQE) of 14.45%.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Zhuopeng Du, Junjie Si, Hong Zhao, and Zugang Liu "Efficient inverted green perovskite light-emitting diodes with high-quality perovskite film", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 131594G (13 May 2024); https://doi.org/10.1117/12.3024270
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KEYWORDS
Perovskite

Magnesium

External quantum efficiency

Light emitting diodes

Scanning electron microscopy

Electron transport

Metals

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