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Blue perovskite light-emitting diodes: progress, challenges and future directions
Metal halide perovskites have excellent optical and electrical properties and can be easily processed via low-cost solution-based techniques like blade-coating and inkjet printing, promising a bright future for various optoelectronic applications. Recently, encouraging progress has been made in pero...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6369678/ https://www.ncbi.nlm.nih.gov/pubmed/30663760 http://dx.doi.org/10.1039/c8nr09885a |
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author | Kumawat, Naresh Kumar Liu, Xiao-Ke Kabra, Dinesh Gao, Feng |
author_facet | Kumawat, Naresh Kumar Liu, Xiao-Ke Kabra, Dinesh Gao, Feng |
author_sort | Kumawat, Naresh Kumar |
collection | PubMed |
description | Metal halide perovskites have excellent optical and electrical properties and can be easily processed via low-cost solution-based techniques like blade-coating and inkjet printing, promising a bright future for various optoelectronic applications. Recently, encouraging progress has been made in perovskite light-emitting diodes (PeLEDs). Green, red, and near-infrared PeLEDs have achieved high external quantum efficiencies of more than 20%. However, as historically blue electroluminescence remains challenging in all previous LED technologies, we are witnessing a similar case with the development of blue PeLEDs, an essential part of displays and solid-state lighting, which lag far behind those of their counterparts. Herein, we review the recent progress of blue PeLEDs and discuss the main challenges including colour instability, poor photoluminescence efficiency and emission quenching by interlayers. Future directions are provided to facilitate the development of efficient blue PeLEDs. |
format | Online Article Text |
id | pubmed-6369678 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-63696782019-03-06 Blue perovskite light-emitting diodes: progress, challenges and future directions Kumawat, Naresh Kumar Liu, Xiao-Ke Kabra, Dinesh Gao, Feng Nanoscale Chemistry Metal halide perovskites have excellent optical and electrical properties and can be easily processed via low-cost solution-based techniques like blade-coating and inkjet printing, promising a bright future for various optoelectronic applications. Recently, encouraging progress has been made in perovskite light-emitting diodes (PeLEDs). Green, red, and near-infrared PeLEDs have achieved high external quantum efficiencies of more than 20%. However, as historically blue electroluminescence remains challenging in all previous LED technologies, we are witnessing a similar case with the development of blue PeLEDs, an essential part of displays and solid-state lighting, which lag far behind those of their counterparts. Herein, we review the recent progress of blue PeLEDs and discuss the main challenges including colour instability, poor photoluminescence efficiency and emission quenching by interlayers. Future directions are provided to facilitate the development of efficient blue PeLEDs. Royal Society of Chemistry 2019-02-07 2019-01-02 /pmc/articles/PMC6369678/ /pubmed/30663760 http://dx.doi.org/10.1039/c8nr09885a Text en This journal is © The Royal Society of Chemistry 2019 http://creativecommons.org/licenses/by-nc/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported Licence (CC BY-NC 3.0) |
spellingShingle | Chemistry Kumawat, Naresh Kumar Liu, Xiao-Ke Kabra, Dinesh Gao, Feng Blue perovskite light-emitting diodes: progress, challenges and future directions |
title | Blue perovskite light-emitting diodes: progress, challenges and future directions |
title_full | Blue perovskite light-emitting diodes: progress, challenges and future directions |
title_fullStr | Blue perovskite light-emitting diodes: progress, challenges and future directions |
title_full_unstemmed | Blue perovskite light-emitting diodes: progress, challenges and future directions |
title_short | Blue perovskite light-emitting diodes: progress, challenges and future directions |
title_sort | blue perovskite light-emitting diodes: progress, challenges and future directions |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6369678/ https://www.ncbi.nlm.nih.gov/pubmed/30663760 http://dx.doi.org/10.1039/c8nr09885a |
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