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Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes
Organic-inorganic hybrid perovskites have the potential to be used as a new class of emitters with tunable emission, high color purity and good ease of fabrication. Recent studies have so far been focused on three-dimensional (3D) perovskites, such as CH(3)NH(3)PbBr(3) and CH(3)NH(3)PbI(3) for green...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025709/ https://www.ncbi.nlm.nih.gov/pubmed/27633084 http://dx.doi.org/10.1038/srep33546 |
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author | Hu, Hongwei Salim, Teddy Chen, Bingbing Lam, Yeng Ming |
author_facet | Hu, Hongwei Salim, Teddy Chen, Bingbing Lam, Yeng Ming |
author_sort | Hu, Hongwei |
collection | PubMed |
description | Organic-inorganic hybrid perovskites have the potential to be used as a new class of emitters with tunable emission, high color purity and good ease of fabrication. Recent studies have so far been focused on three-dimensional (3D) perovskites, such as CH(3)NH(3)PbBr(3) and CH(3)NH(3)PbI(3) for green and infrared emission. Here, we explore a new series of hybrid perovskite emitters with a general formula of (C(4)H(9)NH(3))(2)(CH(3)NH(3))(n−1)Pb(n)I(3n+1) (where n = 1, 2, 3), which possesses a multiple quantum well structure. The quantum well thickness of these materials is adjustable through simple molecular engineering which results in a continuously tunable bandgap and emission spectra. Deep saturated red emission was obtained with a peak external quantum efficiency of 2.29% and a maximum luminance of 214 cd/m(2). Green and blue LEDs were also demonstrated through halogen substitutions in these hybrid perovskites. We expect these results to open up the way towards high performance perovskite LEDs through molecular-structure engineering of these perovskite emitters. |
format | Online Article Text |
id | pubmed-5025709 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-50257092016-09-22 Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes Hu, Hongwei Salim, Teddy Chen, Bingbing Lam, Yeng Ming Sci Rep Article Organic-inorganic hybrid perovskites have the potential to be used as a new class of emitters with tunable emission, high color purity and good ease of fabrication. Recent studies have so far been focused on three-dimensional (3D) perovskites, such as CH(3)NH(3)PbBr(3) and CH(3)NH(3)PbI(3) for green and infrared emission. Here, we explore a new series of hybrid perovskite emitters with a general formula of (C(4)H(9)NH(3))(2)(CH(3)NH(3))(n−1)Pb(n)I(3n+1) (where n = 1, 2, 3), which possesses a multiple quantum well structure. The quantum well thickness of these materials is adjustable through simple molecular engineering which results in a continuously tunable bandgap and emission spectra. Deep saturated red emission was obtained with a peak external quantum efficiency of 2.29% and a maximum luminance of 214 cd/m(2). Green and blue LEDs were also demonstrated through halogen substitutions in these hybrid perovskites. We expect these results to open up the way towards high performance perovskite LEDs through molecular-structure engineering of these perovskite emitters. Nature Publishing Group 2016-09-16 /pmc/articles/PMC5025709/ /pubmed/27633084 http://dx.doi.org/10.1038/srep33546 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Hu, Hongwei Salim, Teddy Chen, Bingbing Lam, Yeng Ming Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title | Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title_full | Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title_fullStr | Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title_full_unstemmed | Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title_short | Molecularly Engineered Organic-Inorganic Hybrid Perovskite with Multiple Quantum Well Structure for Multicolored Light-Emitting Diodes |
title_sort | molecularly engineered organic-inorganic hybrid perovskite with multiple quantum well structure for multicolored light-emitting diodes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025709/ https://www.ncbi.nlm.nih.gov/pubmed/27633084 http://dx.doi.org/10.1038/srep33546 |
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