Lead‐free metal halide perovskites for light‐emitting diodes
Abstract Metal halide perovskites (MHPs) have been developing rapidly in recent years due to their outstanding optoelectronic properties and tremendous contributions from worldwide researchers. The external quantum efficiencies of perovskite light‐emitting diodes (Pero‐LEDs) have all exceeded 20% fo...
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doaj-2a24ccead7134ed09ec6cb53fdce28832021-04-21T16:30:30ZengWileyEcoMat2567-31732021-04-0132n/an/a10.1002/eom2.12082Lead‐free metal halide perovskites for light‐emitting diodesJianxun Lu0Chuanzhong Yan1Wenjing Feng2Xiang Guan3Kebin Lin4Zhanhua Wei5Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaXiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaXiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaXiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaXiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaXiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, Institute of Luminescent Materials and Information Displays College of Materials Science and Engineering, Huaqiao University Xiamen ChinaAbstract Metal halide perovskites (MHPs) have been developing rapidly in recent years due to their outstanding optoelectronic properties and tremendous contributions from worldwide researchers. The external quantum efficiencies of perovskite light‐emitting diodes (Pero‐LEDs) have all exceeded 20% for the green, red, and near‐infrared emitting ones. However, the toxicity and instability issues of the lead‐based MHPs are still big problems limiting their practical applications. The applications of the lead‐free MHPs (LFMHPs) are emerging as one of the most promising strategies to tackle these issues. Compared with lead‐based MHPs, the LFMHPs show better environment stability and broader emission regions from the violet to near‐infrared wavelength. Thanks to numerous contributions made by the researchers, great progress has already been made for the LFMHPs. For example, the photoluminescence quantum yield has reached near 100%. However, the performances of the lead‐free Pero‐LEDs are still lagging compared with their lead‐based counterparts. In this review, we comprehensively summarize the synthesis developments of LFMHPs and their applications in the down‐conversion white LEDs and electroluminescent Pero‐LEDs. Moreover, some suggestions and outlooks of the lead‐free Pero‐LEDs developments are proposed in the end.https://doi.org/10.1002/eom2.12082down‐conversionlead‐free perovskiteslight‐emitting diodessynthesis strategies |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jianxun Lu Chuanzhong Yan Wenjing Feng Xiang Guan Kebin Lin Zhanhua Wei |
spellingShingle |
Jianxun Lu Chuanzhong Yan Wenjing Feng Xiang Guan Kebin Lin Zhanhua Wei Lead‐free metal halide perovskites for light‐emitting diodes EcoMat down‐conversion lead‐free perovskites light‐emitting diodes synthesis strategies |
author_facet |
Jianxun Lu Chuanzhong Yan Wenjing Feng Xiang Guan Kebin Lin Zhanhua Wei |
author_sort |
Jianxun Lu |
title |
Lead‐free metal halide perovskites for light‐emitting diodes |
title_short |
Lead‐free metal halide perovskites for light‐emitting diodes |
title_full |
Lead‐free metal halide perovskites for light‐emitting diodes |
title_fullStr |
Lead‐free metal halide perovskites for light‐emitting diodes |
title_full_unstemmed |
Lead‐free metal halide perovskites for light‐emitting diodes |
title_sort |
lead‐free metal halide perovskites for light‐emitting diodes |
publisher |
Wiley |
series |
EcoMat |
issn |
2567-3173 |
publishDate |
2021-04-01 |
description |
Abstract Metal halide perovskites (MHPs) have been developing rapidly in recent years due to their outstanding optoelectronic properties and tremendous contributions from worldwide researchers. The external quantum efficiencies of perovskite light‐emitting diodes (Pero‐LEDs) have all exceeded 20% for the green, red, and near‐infrared emitting ones. However, the toxicity and instability issues of the lead‐based MHPs are still big problems limiting their practical applications. The applications of the lead‐free MHPs (LFMHPs) are emerging as one of the most promising strategies to tackle these issues. Compared with lead‐based MHPs, the LFMHPs show better environment stability and broader emission regions from the violet to near‐infrared wavelength. Thanks to numerous contributions made by the researchers, great progress has already been made for the LFMHPs. For example, the photoluminescence quantum yield has reached near 100%. However, the performances of the lead‐free Pero‐LEDs are still lagging compared with their lead‐based counterparts. In this review, we comprehensively summarize the synthesis developments of LFMHPs and their applications in the down‐conversion white LEDs and electroluminescent Pero‐LEDs. Moreover, some suggestions and outlooks of the lead‐free Pero‐LEDs developments are proposed in the end. |
topic |
down‐conversion lead‐free perovskites light‐emitting diodes synthesis strategies |
url |
https://doi.org/10.1002/eom2.12082 |
work_keys_str_mv |
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1721515954054103040 |