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Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors

Oxygen-containing functional groups in graphene oxide (GO), a derivative of graphene, can widen the bandgap of graphene. In this study, we varied the amount of hydrogen peroxide used to prepare GO samples with different degrees of oxidation. Transmittance measurement, Raman spectroscopy, and X-ray p...

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Autores principales: Shih, Ching-Kuei, Ciou, Yu-Tang, Chiu, Chun-Wei, Li, Yu-Ru, Jheng, Jia-Syun, Chen, Yen-Chun, Lin, Chu-Hsuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071096/
https://www.ncbi.nlm.nih.gov/pubmed/29973515
http://dx.doi.org/10.3390/nano8070491
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author Shih, Ching-Kuei
Ciou, Yu-Tang
Chiu, Chun-Wei
Li, Yu-Ru
Jheng, Jia-Syun
Chen, Yen-Chun
Lin, Chu-Hsuan
author_facet Shih, Ching-Kuei
Ciou, Yu-Tang
Chiu, Chun-Wei
Li, Yu-Ru
Jheng, Jia-Syun
Chen, Yen-Chun
Lin, Chu-Hsuan
author_sort Shih, Ching-Kuei
collection PubMed
description Oxygen-containing functional groups in graphene oxide (GO), a derivative of graphene, can widen the bandgap of graphene. In this study, we varied the amount of hydrogen peroxide used to prepare GO samples with different degrees of oxidation. Transmittance measurement, Raman spectroscopy, and X-ray photoelectron spectroscopy were used to completely characterize the change in oxidation degree. The effects of oxidation degree on p-type and n-type Si heterojunction photodetectors were compared. Notably, GO with a lower oxidation degree led to a larger photoresponse of p-type Si, whereas that with a higher oxidation degree achieved a larger photoresponse of n-type Si.
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spelling pubmed-60710962018-08-09 Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors Shih, Ching-Kuei Ciou, Yu-Tang Chiu, Chun-Wei Li, Yu-Ru Jheng, Jia-Syun Chen, Yen-Chun Lin, Chu-Hsuan Nanomaterials (Basel) Article Oxygen-containing functional groups in graphene oxide (GO), a derivative of graphene, can widen the bandgap of graphene. In this study, we varied the amount of hydrogen peroxide used to prepare GO samples with different degrees of oxidation. Transmittance measurement, Raman spectroscopy, and X-ray photoelectron spectroscopy were used to completely characterize the change in oxidation degree. The effects of oxidation degree on p-type and n-type Si heterojunction photodetectors were compared. Notably, GO with a lower oxidation degree led to a larger photoresponse of p-type Si, whereas that with a higher oxidation degree achieved a larger photoresponse of n-type Si. MDPI 2018-07-04 /pmc/articles/PMC6071096/ /pubmed/29973515 http://dx.doi.org/10.3390/nano8070491 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shih, Ching-Kuei
Ciou, Yu-Tang
Chiu, Chun-Wei
Li, Yu-Ru
Jheng, Jia-Syun
Chen, Yen-Chun
Lin, Chu-Hsuan
Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title_full Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title_fullStr Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title_full_unstemmed Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title_short Effects of Different Oxidation Degrees of Graphene Oxide on P-Type and N-Type Si Heterojunction Photodetectors
title_sort effects of different oxidation degrees of graphene oxide on p-type and n-type si heterojunction photodetectors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6071096/
https://www.ncbi.nlm.nih.gov/pubmed/29973515
http://dx.doi.org/10.3390/nano8070491
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