The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode

Abstract In this study, the effect of electrode shape difference on the height of the Schottky barrier and the electric field in flexible photodiodes (PDs) has been investigated. For this purpose, three different electrode designs were prepared on three flexible FR4 layers that were coated with Zinc...

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Autores principales:	Zahra Aminrayai Jezeh, Babak Efafi, Bijan Ghafary
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0eca9171a3d340fca1fe611669cd2654
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spelling	oai:doaj.org-article:0eca9171a3d340fca1fe611669cd26542021-12-02T14:53:49ZThe effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode10.1038/s41598-021-95203-32045-2322https://doaj.org/article/0eca9171a3d340fca1fe611669cd26542021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95203-3https://doaj.org/toc/2045-2322Abstract In this study, the effect of electrode shape difference on the height of the Schottky barrier and the electric field in flexible photodiodes (PDs) has been investigated. For this purpose, three different electrode designs were prepared on three flexible FR4 layers that were coated with Zinc Oxide (ZnO). The printing circuit board (PCB) method was used to create these copper electrodes. The asymmetry of the PD electrodes and the difference in the height of the Schottky barrier has led to the creation of self-powered PDs. The effect of the amount and shape of the distribution of internal electric fields generated in the PDs and its effect on the parameters of the PDs has been investigated with the help of simulations performed in COMSOL software. The photocurrent of the sample with circular and rectangular electrodes was equal to 470 µA in 15 V bias, which was twice as good as a sample with an interdigitated MSM structure. Also, this sample had the best response time among these three samples, which was equal to 440 ms.Zahra Aminrayai JezehBabak EfafiBijan GhafaryNature 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 Zahra Aminrayai Jezeh Babak Efafi Bijan Ghafary The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
description	Abstract In this study, the effect of electrode shape difference on the height of the Schottky barrier and the electric field in flexible photodiodes (PDs) has been investigated. For this purpose, three different electrode designs were prepared on three flexible FR4 layers that were coated with Zinc Oxide (ZnO). The printing circuit board (PCB) method was used to create these copper electrodes. The asymmetry of the PD electrodes and the difference in the height of the Schottky barrier has led to the creation of self-powered PDs. The effect of the amount and shape of the distribution of internal electric fields generated in the PDs and its effect on the parameters of the PDs has been investigated with the help of simulations performed in COMSOL software. The photocurrent of the sample with circular and rectangular electrodes was equal to 470 µA in 15 V bias, which was twice as good as a sample with an interdigitated MSM structure. Also, this sample had the best response time among these three samples, which was equal to 440 ms.
format	article
author	Zahra Aminrayai Jezeh Babak Efafi Bijan Ghafary
author_facet	Zahra Aminrayai Jezeh Babak Efafi Bijan Ghafary
author_sort	Zahra Aminrayai Jezeh
title	The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
title_short	The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
title_full	The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
title_fullStr	The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
title_full_unstemmed	The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode
title_sort	effect of electrode shape on schottky barrier and electric field distribution of flexible zno photodiode
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0eca9171a3d340fca1fe611669cd2654
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The effect of electrode shape on Schottky barrier and electric field distribution of flexible ZnO photodiode

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