Organic light-emitting devices based on conducting polymer treated with benzoic acid

Abstract We report on the enhanced conductivity of the benzoic-acid-treated poly(3,4-ethlenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) electrode for use in highly flexible, organic light-emitting devices (OLEDs). The conductivity of the benzoic-acid-treated PEDOT:PSS electrode increased fro...

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Autores principales:	Hwa Seung Kang, Dae Hun Kim, Tae Whan Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/476b315b30334285a4e2ba26ab03dd09
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spelling	oai:doaj.org-article:476b315b30334285a4e2ba26ab03dd092021-12-02T12:11:12ZOrganic light-emitting devices based on conducting polymer treated with benzoic acid10.1038/s41598-021-82980-02045-2322https://doaj.org/article/476b315b30334285a4e2ba26ab03dd092021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82980-0https://doaj.org/toc/2045-2322Abstract We report on the enhanced conductivity of the benzoic-acid-treated poly(3,4-ethlenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) electrode for use in highly flexible, organic light-emitting devices (OLEDs). The conductivity of the benzoic-acid-treated PEDOT:PSS electrode increased from 1 to 1583.2 S/cm, in comparison with that of the pristine PEDOT:PSS electrode, due to a complex factor of the H+ mole % and the dielectric constant of the benzoic solution. Among the post-treatment methods of the PEDOT:PSS electrodes, the operating voltage at 1000 cd/m2 of OLEDs fabricated utilizing the PEDOT:PSS electrode with the benzoic acid treatment has the lowest value, and its maximum luminance is 24,400 cd/m2, which are 1.54 and 2.15 times higher than those of OLEDs using PEDOT:PSS electrodes treated with dimethyl sulfoxide and methanol, respectively. The luminance of a flexible OLED with a benzoic-acid-treated PEDOT:PSS electrode after 1400 bending cycles decreased to 83% of the initial luminance, resulting in excellent mechanical stability.Hwa Seung KangDae Hun KimTae Whan KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hwa Seung Kang Dae Hun Kim Tae Whan Kim Organic light-emitting devices based on conducting polymer treated with benzoic acid
description	Abstract We report on the enhanced conductivity of the benzoic-acid-treated poly(3,4-ethlenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) electrode for use in highly flexible, organic light-emitting devices (OLEDs). The conductivity of the benzoic-acid-treated PEDOT:PSS electrode increased from 1 to 1583.2 S/cm, in comparison with that of the pristine PEDOT:PSS electrode, due to a complex factor of the H+ mole % and the dielectric constant of the benzoic solution. Among the post-treatment methods of the PEDOT:PSS electrodes, the operating voltage at 1000 cd/m2 of OLEDs fabricated utilizing the PEDOT:PSS electrode with the benzoic acid treatment has the lowest value, and its maximum luminance is 24,400 cd/m2, which are 1.54 and 2.15 times higher than those of OLEDs using PEDOT:PSS electrodes treated with dimethyl sulfoxide and methanol, respectively. The luminance of a flexible OLED with a benzoic-acid-treated PEDOT:PSS electrode after 1400 bending cycles decreased to 83% of the initial luminance, resulting in excellent mechanical stability.
format	article
author	Hwa Seung Kang Dae Hun Kim Tae Whan Kim
author_facet	Hwa Seung Kang Dae Hun Kim Tae Whan Kim
author_sort	Hwa Seung Kang
title	Organic light-emitting devices based on conducting polymer treated with benzoic acid
title_short	Organic light-emitting devices based on conducting polymer treated with benzoic acid
title_full	Organic light-emitting devices based on conducting polymer treated with benzoic acid
title_fullStr	Organic light-emitting devices based on conducting polymer treated with benzoic acid
title_full_unstemmed	Organic light-emitting devices based on conducting polymer treated with benzoic acid
title_sort	organic light-emitting devices based on conducting polymer treated with benzoic acid
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/476b315b30334285a4e2ba26ab03dd09
work_keys_str_mv	AT hwaseungkang organiclightemittingdevicesbasedonconductingpolymertreatedwithbenzoicacid AT daehunkim organiclightemittingdevicesbasedonconductingpolymertreatedwithbenzoicacid AT taewhankim organiclightemittingdevicesbasedonconductingpolymertreatedwithbenzoicacid
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Organic light-emitting devices based on conducting polymer treated with benzoic acid

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