A negative piezo-conductive effect from doped semiconducting polymer thin films

Abstract In the past years, piezo-conductive sensors have drawn great attention in both academic and industrial sectors. The piezo-conductive sensors made by inorganic semiconductors exhibited poor mechanical flexibility, restricting their further practical applications. In this study, we report the...

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Autores principales:	Chao Yi, Lening Shen, Jie Zheng, Xiong Gong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/09dc2d100486492782ccb84705c01dfa
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spelling	oai:doaj.org-article:09dc2d100486492782ccb84705c01dfa2021-12-02T17:23:39ZA negative piezo-conductive effect from doped semiconducting polymer thin films10.1038/s41598-021-97812-42045-2322https://doaj.org/article/09dc2d100486492782ccb84705c01dfa2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97812-4https://doaj.org/toc/2045-2322Abstract In the past years, piezo-conductive sensors have drawn great attention in both academic and industrial sectors. The piezo-conductive sensors made by inorganic semiconductors exhibited poor mechanical flexibility, restricting their further practical applications. In this study, we report the piezo-conductive sensors by a semiconducting polymer, poly(3,4-ethylenedioxythiophene) doped with tosylate ions (PEDOT:Tos) thin films. Systemically studies indicate that the piezo-conductive response of the PEDOT:Tos thin films is originated from the deformation of the PEDOT crystal cells and the stretched π–π distances induced by Tos. Moreover, the negative piezo-conductive effect, for the first time, is observed from PEDOT:Tos thin film under the pressure. A working mechanism is further proposed to interpret the transient from a positive to a negative piezo-conductive response within the PEDOT:Tos thin films. Our studies offer a facile route to approach effective piezo-conductive sensors based on conjugated polymers.Chao YiLening ShenJie ZhengXiong GongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chao Yi Lening Shen Jie Zheng Xiong Gong A negative piezo-conductive effect from doped semiconducting polymer thin films
description	Abstract In the past years, piezo-conductive sensors have drawn great attention in both academic and industrial sectors. The piezo-conductive sensors made by inorganic semiconductors exhibited poor mechanical flexibility, restricting their further practical applications. In this study, we report the piezo-conductive sensors by a semiconducting polymer, poly(3,4-ethylenedioxythiophene) doped with tosylate ions (PEDOT:Tos) thin films. Systemically studies indicate that the piezo-conductive response of the PEDOT:Tos thin films is originated from the deformation of the PEDOT crystal cells and the stretched π–π distances induced by Tos. Moreover, the negative piezo-conductive effect, for the first time, is observed from PEDOT:Tos thin film under the pressure. A working mechanism is further proposed to interpret the transient from a positive to a negative piezo-conductive response within the PEDOT:Tos thin films. Our studies offer a facile route to approach effective piezo-conductive sensors based on conjugated polymers.
format	article
author	Chao Yi Lening Shen Jie Zheng Xiong Gong
author_facet	Chao Yi Lening Shen Jie Zheng Xiong Gong
author_sort	Chao Yi
title	A negative piezo-conductive effect from doped semiconducting polymer thin films
title_short	A negative piezo-conductive effect from doped semiconducting polymer thin films
title_full	A negative piezo-conductive effect from doped semiconducting polymer thin films
title_fullStr	A negative piezo-conductive effect from doped semiconducting polymer thin films
title_full_unstemmed	A negative piezo-conductive effect from doped semiconducting polymer thin films
title_sort	negative piezo-conductive effect from doped semiconducting polymer thin films
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/09dc2d100486492782ccb84705c01dfa
work_keys_str_mv	AT chaoyi anegativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT leningshen anegativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT jiezheng anegativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT xionggong anegativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT chaoyi negativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT leningshen negativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT jiezheng negativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms AT xionggong negativepiezoconductiveeffectfromdopedsemiconductingpolymerthinfilms
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A negative piezo-conductive effect from doped semiconducting polymer thin films

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