Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs

Abstract In this study, we designed a smooth, highly flexible, mechanically robust poly(vinyl-butyral) (PVB)/silver nanowire (AgNW) composite transparent conducting electrode (TCE) integrated with a random nanocone (RNC) to enhance the light extraction of flexible organic light-emitting diodes (OLED...

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Autores principales:	Dong Jun Lee, In Seon Yoon, Cheol Hwee Park, Junhee Choi, Young Wook Park, Byeong-Kwon Ju
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a05a718f1c3f4dd2b14cf95b4f4bc4e7
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spelling	oai:doaj.org-article:a05a718f1c3f4dd2b14cf95b4f4bc4e72021-12-02T15:09:53ZExtraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs10.1038/s41598-019-48808-82045-2322https://doaj.org/article/a05a718f1c3f4dd2b14cf95b4f4bc4e72019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48808-8https://doaj.org/toc/2045-2322Abstract In this study, we designed a smooth, highly flexible, mechanically robust poly(vinyl-butyral) (PVB)/silver nanowire (AgNW) composite transparent conducting electrode (TCE) integrated with a random nanocone (RNC) to enhance the light extraction of flexible organic light-emitting diodes (OLEDs). The RNC was fabricated by reactive-ion etching (RIE) on AgNW embedded in PVB. As the etching time increased, the size of the RNC became larger. The sheet resistance and transmittance of PVB/AgNW with the RNC was 21.7 Ω/sq and ~87%, respectively. For the PVB/AgNW, the change in sheet resistance was only 2.6% when a 2,000-bend test was performed. The maximum external quantum efficiency was 28.3% when RNC 700 s was used as a green phosphorescent OLED. In addition, for current efficiency and power efficiency, RNC 700 s increased 1.4 times over RNC 0 s. RNC is free of viewing-angle-dependent color and brightness distortion. PVB/AgNW and RNC are practical ways to overcome the brittleness of conventional indium tin oxide and improve the efficiency of flexible OLEDs. Finally, this product is expected to be applied to various flexible optical devices.Dong Jun LeeIn Seon YoonCheol Hwee ParkJunhee ChoiYoung Wook ParkByeong-Kwon JuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dong Jun Lee In Seon Yoon Cheol Hwee Park Junhee Choi Young Wook Park Byeong-Kwon Ju Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
description	Abstract In this study, we designed a smooth, highly flexible, mechanically robust poly(vinyl-butyral) (PVB)/silver nanowire (AgNW) composite transparent conducting electrode (TCE) integrated with a random nanocone (RNC) to enhance the light extraction of flexible organic light-emitting diodes (OLEDs). The RNC was fabricated by reactive-ion etching (RIE) on AgNW embedded in PVB. As the etching time increased, the size of the RNC became larger. The sheet resistance and transmittance of PVB/AgNW with the RNC was 21.7 Ω/sq and ~87%, respectively. For the PVB/AgNW, the change in sheet resistance was only 2.6% when a 2,000-bend test was performed. The maximum external quantum efficiency was 28.3% when RNC 700 s was used as a green phosphorescent OLED. In addition, for current efficiency and power efficiency, RNC 700 s increased 1.4 times over RNC 0 s. RNC is free of viewing-angle-dependent color and brightness distortion. PVB/AgNW and RNC are practical ways to overcome the brittleness of conventional indium tin oxide and improve the efficiency of flexible OLEDs. Finally, this product is expected to be applied to various flexible optical devices.
format	article
author	Dong Jun Lee In Seon Yoon Cheol Hwee Park Junhee Choi Young Wook Park Byeong-Kwon Ju
author_facet	Dong Jun Lee In Seon Yoon Cheol Hwee Park Junhee Choi Young Wook Park Byeong-Kwon Ju
author_sort	Dong Jun Lee
title	Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
title_short	Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
title_full	Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
title_fullStr	Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
title_full_unstemmed	Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs
title_sort	extraction of light using random nanocone on poly(vinyl-butyral) for flexible oleds
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/a05a718f1c3f4dd2b14cf95b4f4bc4e7
work_keys_str_mv	AT dongjunlee extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds AT inseonyoon extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds AT cheolhweepark extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds AT junheechoi extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds AT youngwookpark extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds AT byeongkwonju extractionoflightusingrandomnanoconeonpolyvinylbutyralforflexibleoleds
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Extraction of Light Using Random Nanocone on Poly(vinyl-butyral) for Flexible OLEDs

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