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Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals

In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The...

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Autores principales: Chen, Lung-Chien, Tseng, Zong-Liang, Lin, Dai-Wei, Lin, Yu-Shiang, Chen, Sheng-Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071281/
https://www.ncbi.nlm.nih.gov/pubmed/29941783
http://dx.doi.org/10.3390/nano8070459
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author Chen, Lung-Chien
Tseng, Zong-Liang
Lin, Dai-Wei
Lin, Yu-Shiang
Chen, Sheng-Hui
author_facet Chen, Lung-Chien
Tseng, Zong-Liang
Lin, Dai-Wei
Lin, Yu-Shiang
Chen, Sheng-Hui
author_sort Chen, Lung-Chien
collection PubMed
description In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The high exciton binding energy in the resulting films employing octylammonium bromide (OAB) adductives proved that high fluorescence originated from the quantum confinement effect. The corresponding perovskite light-emitting diodes (PeLEDs) that were based on this technique also exhibited excellent device performance.
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spelling pubmed-60712812018-08-09 Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals Chen, Lung-Chien Tseng, Zong-Liang Lin, Dai-Wei Lin, Yu-Shiang Chen, Sheng-Hui Nanomaterials (Basel) Article In this study, we demonstrate an easy and reliable solution-processed technique using an extra adductive in the perovskite precursor solution. Using this method, a dense and uniform morphology with full surface coverage and highly fluorescent films with nanoscale crystal grains can be obtained. The high exciton binding energy in the resulting films employing octylammonium bromide (OAB) adductives proved that high fluorescence originated from the quantum confinement effect. The corresponding perovskite light-emitting diodes (PeLEDs) that were based on this technique also exhibited excellent device performance. MDPI 2018-06-25 /pmc/articles/PMC6071281/ /pubmed/29941783 http://dx.doi.org/10.3390/nano8070459 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Lung-Chien
Tseng, Zong-Liang
Lin, Dai-Wei
Lin, Yu-Shiang
Chen, Sheng-Hui
Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title_full Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title_fullStr Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title_full_unstemmed Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title_short Improved Performance of Perovskite Light-Emitting Diodes by Quantum Confinement Effect in Perovskite Nanocrystals
title_sort improved performance of perovskite light-emitting diodes by quantum confinement effect in perovskite nanocrystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071281/
https://www.ncbi.nlm.nih.gov/pubmed/29941783
http://dx.doi.org/10.3390/nano8070459
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