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Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes
Organic light-emitting diode (OLED)-based display products have already emerged in the market and their efficiencies and lifetimes are sound at the comparatively low required luminance. To realize OLED for lighting application sooner, higher light quality and better power efficiency at elevated lumi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332251/ https://www.ncbi.nlm.nih.gov/pubmed/26193252 http://dx.doi.org/10.3390/molecules200713005 |
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author | Jou, Jwo-Huei Kumar, Sudhir Singh, Meenu Chen, Yi-Hong Chen, Chung-Chia Lee, Meng-Ting |
author_facet | Jou, Jwo-Huei Kumar, Sudhir Singh, Meenu Chen, Yi-Hong Chen, Chung-Chia Lee, Meng-Ting |
author_sort | Jou, Jwo-Huei |
collection | PubMed |
description | Organic light-emitting diode (OLED)-based display products have already emerged in the market and their efficiencies and lifetimes are sound at the comparatively low required luminance. To realize OLED for lighting application sooner, higher light quality and better power efficiency at elevated luminance are still demanded. This review reveals the advantages of incorporating a nano-scale carrier modulation layer (CML), also known as a spacer, carrier-regulating layer, or interlayer, among other terms, to tune the chromaticity and color temperature as well as to markedly improve the device efficiency and color rendering index (CRI) for numerous OLED devices. The functions of the CML can be enhanced as multiple layers and blend structures are employed. At proper thickness, the employment of CML enables the device to balance the distribution of carriers in the two emissive zones and achieve high device efficiencies and long operational lifetime while maintaining very high CRI. Moreover, we have also reviewed the effect of using CML on the most significant characteristics of OLEDs, namely: efficiency, luminance, life-time, CRI, SRI, chromaticity, and the color temperature, and see how the thickness tuning and selection of proper CML are crucial to effectively control the OLED device performance. |
format | Online Article Text |
id | pubmed-6332251 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63322512019-01-24 Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes Jou, Jwo-Huei Kumar, Sudhir Singh, Meenu Chen, Yi-Hong Chen, Chung-Chia Lee, Meng-Ting Molecules Review Organic light-emitting diode (OLED)-based display products have already emerged in the market and their efficiencies and lifetimes are sound at the comparatively low required luminance. To realize OLED for lighting application sooner, higher light quality and better power efficiency at elevated luminance are still demanded. This review reveals the advantages of incorporating a nano-scale carrier modulation layer (CML), also known as a spacer, carrier-regulating layer, or interlayer, among other terms, to tune the chromaticity and color temperature as well as to markedly improve the device efficiency and color rendering index (CRI) for numerous OLED devices. The functions of the CML can be enhanced as multiple layers and blend structures are employed. At proper thickness, the employment of CML enables the device to balance the distribution of carriers in the two emissive zones and achieve high device efficiencies and long operational lifetime while maintaining very high CRI. Moreover, we have also reviewed the effect of using CML on the most significant characteristics of OLEDs, namely: efficiency, luminance, life-time, CRI, SRI, chromaticity, and the color temperature, and see how the thickness tuning and selection of proper CML are crucial to effectively control the OLED device performance. MDPI 2015-07-17 /pmc/articles/PMC6332251/ /pubmed/26193252 http://dx.doi.org/10.3390/molecules200713005 Text en © 2015 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 license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Jou, Jwo-Huei Kumar, Sudhir Singh, Meenu Chen, Yi-Hong Chen, Chung-Chia Lee, Meng-Ting Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title | Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title_full | Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title_fullStr | Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title_full_unstemmed | Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title_short | Carrier Modulation Layer-Enhanced Organic Light-Emitting Diodes |
title_sort | carrier modulation layer-enhanced organic light-emitting diodes |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332251/ https://www.ncbi.nlm.nih.gov/pubmed/26193252 http://dx.doi.org/10.3390/molecules200713005 |
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