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Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite for High-Brightness Light-Emitting Diodes
[Image: see text] Research into perovskite-based light-emitting diodes (PeLEDs) has been rapidly gaining momentum since the initial reports of green-emitting methylammonium lead bromide (CH(3)NH(3)PbBr(3))-based devices were published. However, issues pertaining to its stability and morphological co...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640975/ https://www.ncbi.nlm.nih.gov/pubmed/31457613 http://dx.doi.org/10.1021/acsomega.7b00360 |
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author | Ng, Yan Fong Jamaludin, Nur Fadilah Yantara, Natalia Li, Mingjie Irukuvarjula, Venkata Kameshwar Rao Demir, Hilmi Volkan Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan |
author_facet | Ng, Yan Fong Jamaludin, Nur Fadilah Yantara, Natalia Li, Mingjie Irukuvarjula, Venkata Kameshwar Rao Demir, Hilmi Volkan Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan |
author_sort | Ng, Yan Fong |
collection | PubMed |
description | [Image: see text] Research into perovskite-based light-emitting diodes (PeLEDs) has been rapidly gaining momentum since the initial reports of green-emitting methylammonium lead bromide (CH(3)NH(3)PbBr(3))-based devices were published. However, issues pertaining to its stability and morphological control still hamper progress toward high performing devices. Solvent engineering, a technique typically employed to modulate film crystallization, offers little opportunity for scale-up due to the tendency for inhomogeneous film growth and low degree of reproducibility. Here, we propose and show a simple gas-facilitated process to deposit a stable, all-inorganic perovskite CsPbBr(3) film. The formation of smaller and less percolated grains, which gives rise to enhanced optical properties, highlights the importance of spatial charge confinement in the film. Consequently, the performance of our PeLEDs shows great improvement, with luminance as high as 8218 cd m(–2) and turn-on voltage as low as 2.4 V. Concomitantly, the current efficiency and EQE of our device were increased to 0.72 cd A(–1) and 0.088%, respectively. High reproducibility in the performance of PeLEDs fabricated using this process opens the path for large-area devices. |
format | Online Article Text |
id | pubmed-6640975 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66409752019-08-27 Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite for High-Brightness Light-Emitting Diodes Ng, Yan Fong Jamaludin, Nur Fadilah Yantara, Natalia Li, Mingjie Irukuvarjula, Venkata Kameshwar Rao Demir, Hilmi Volkan Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan ACS Omega [Image: see text] Research into perovskite-based light-emitting diodes (PeLEDs) has been rapidly gaining momentum since the initial reports of green-emitting methylammonium lead bromide (CH(3)NH(3)PbBr(3))-based devices were published. However, issues pertaining to its stability and morphological control still hamper progress toward high performing devices. Solvent engineering, a technique typically employed to modulate film crystallization, offers little opportunity for scale-up due to the tendency for inhomogeneous film growth and low degree of reproducibility. Here, we propose and show a simple gas-facilitated process to deposit a stable, all-inorganic perovskite CsPbBr(3) film. The formation of smaller and less percolated grains, which gives rise to enhanced optical properties, highlights the importance of spatial charge confinement in the film. Consequently, the performance of our PeLEDs shows great improvement, with luminance as high as 8218 cd m(–2) and turn-on voltage as low as 2.4 V. Concomitantly, the current efficiency and EQE of our device were increased to 0.72 cd A(–1) and 0.088%, respectively. High reproducibility in the performance of PeLEDs fabricated using this process opens the path for large-area devices. American Chemical Society 2017-06-19 /pmc/articles/PMC6640975/ /pubmed/31457613 http://dx.doi.org/10.1021/acsomega.7b00360 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Ng, Yan Fong Jamaludin, Nur Fadilah Yantara, Natalia Li, Mingjie Irukuvarjula, Venkata Kameshwar Rao Demir, Hilmi Volkan Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite for High-Brightness Light-Emitting Diodes |
title | Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite
for High-Brightness Light-Emitting Diodes |
title_full | Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite
for High-Brightness Light-Emitting Diodes |
title_fullStr | Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite
for High-Brightness Light-Emitting Diodes |
title_full_unstemmed | Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite
for High-Brightness Light-Emitting Diodes |
title_short | Rapid Crystallization of All-Inorganic CsPbBr(3) Perovskite
for High-Brightness Light-Emitting Diodes |
title_sort | rapid crystallization of all-inorganic cspbbr(3) perovskite
for high-brightness light-emitting diodes |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6640975/ https://www.ncbi.nlm.nih.gov/pubmed/31457613 http://dx.doi.org/10.1021/acsomega.7b00360 |
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