High light-quality OLEDs with a wet-processed single emissive layer

Abstract High light-quality and low color temperature are crucial to justify a comfortable healthy illumination. Wet-process enables electronic devices cost-effective fabrication feasibility. We present herein low color temperature, blue-emission hazards free organic light emitting diodes (OLEDs) wi...

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Autores principales:	Meenu Singh, Jwo-Huei Jou, Snehasis Sahoo, Sujith S. S., Zhe-Kai He, Gintare Krucaite, Saulius Grigalevicius, Ching-Wu Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/24c0bd3adcb6431abdca86feed581acf
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spelling	oai:doaj.org-article:24c0bd3adcb6431abdca86feed581acf2021-12-02T15:05:17ZHigh light-quality OLEDs with a wet-processed single emissive layer10.1038/s41598-018-24125-42045-2322https://doaj.org/article/24c0bd3adcb6431abdca86feed581acf2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24125-4https://doaj.org/toc/2045-2322Abstract High light-quality and low color temperature are crucial to justify a comfortable healthy illumination. Wet-process enables electronic devices cost-effective fabrication feasibility. We present herein low color temperature, blue-emission hazards free organic light emitting diodes (OLEDs) with very-high light-quality indices, that with a single emissive layer spin-coated with multiple blackbody-radiation complementary dyes, namely deep-red, yellow, green and sky-blue. Specifically, an OLED with a 1,854 K color temperature showed a color rendering index (CRI) of 90 and a spectrum resemblance index (SRI) of 88, whose melatonin suppression sensitivity is only 3% relative to a reference blue light of 480 nm. Its maximum retina permissible exposure limit is 3,454 seconds at 100 lx, 11, 10 and 6 times longer and safer than the counterparts of compact fluorescent lamp (5,920 K), light emitting diode (5,500 K) and OLED (5,000 K). By incorporating a co-host, tris(4-carbazoyl-9-ylphenyl)amine (TCTA), the resulting OLED showed a current efficiency of 24.9 cd/A and an external quantum efficiency of 24.5% at 100 cd/m2. It exhibited ultra-high light quality with a CRI of 93 and an SRI of 92. These prove blue-hazard free, high quality and healthy OLED to be fabrication feasible via the easy-to-apply wet-processed single emissive layer with multiple emitters.Meenu SinghJwo-Huei JouSnehasis SahooSujith S. S.Zhe-Kai HeGintare KrucaiteSaulius GrigaleviciusChing-Wu WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Meenu Singh Jwo-Huei Jou Snehasis Sahoo Sujith S. S. Zhe-Kai He Gintare Krucaite Saulius Grigalevicius Ching-Wu Wang High light-quality OLEDs with a wet-processed single emissive layer
description	Abstract High light-quality and low color temperature are crucial to justify a comfortable healthy illumination. Wet-process enables electronic devices cost-effective fabrication feasibility. We present herein low color temperature, blue-emission hazards free organic light emitting diodes (OLEDs) with very-high light-quality indices, that with a single emissive layer spin-coated with multiple blackbody-radiation complementary dyes, namely deep-red, yellow, green and sky-blue. Specifically, an OLED with a 1,854 K color temperature showed a color rendering index (CRI) of 90 and a spectrum resemblance index (SRI) of 88, whose melatonin suppression sensitivity is only 3% relative to a reference blue light of 480 nm. Its maximum retina permissible exposure limit is 3,454 seconds at 100 lx, 11, 10 and 6 times longer and safer than the counterparts of compact fluorescent lamp (5,920 K), light emitting diode (5,500 K) and OLED (5,000 K). By incorporating a co-host, tris(4-carbazoyl-9-ylphenyl)amine (TCTA), the resulting OLED showed a current efficiency of 24.9 cd/A and an external quantum efficiency of 24.5% at 100 cd/m2. It exhibited ultra-high light quality with a CRI of 93 and an SRI of 92. These prove blue-hazard free, high quality and healthy OLED to be fabrication feasible via the easy-to-apply wet-processed single emissive layer with multiple emitters.
format	article
author	Meenu Singh Jwo-Huei Jou Snehasis Sahoo Sujith S. S. Zhe-Kai He Gintare Krucaite Saulius Grigalevicius Ching-Wu Wang
author_facet	Meenu Singh Jwo-Huei Jou Snehasis Sahoo Sujith S. S. Zhe-Kai He Gintare Krucaite Saulius Grigalevicius Ching-Wu Wang
author_sort	Meenu Singh
title	High light-quality OLEDs with a wet-processed single emissive layer
title_short	High light-quality OLEDs with a wet-processed single emissive layer
title_full	High light-quality OLEDs with a wet-processed single emissive layer
title_fullStr	High light-quality OLEDs with a wet-processed single emissive layer
title_full_unstemmed	High light-quality OLEDs with a wet-processed single emissive layer
title_sort	high light-quality oleds with a wet-processed single emissive layer
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/24c0bd3adcb6431abdca86feed581acf
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High light-quality OLEDs with a wet-processed single emissive layer

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