Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect

Pt/ZnO nanorod (NR) and Pt/modified ZnO NR Schottky barrier ultraviolet (UV) photodetectors (PDs) were prepared with different seed layers and metal oxide modifying layer materials. In this paper, we discussed the effect of metal oxide modifying layer on the performance of UV PDs pre- and post-depos...

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Detalles Bibliográficos
Autores principales: Zhou, Hai, Fang, Guojia, Liu, Nishuang, Zhao, Xingzhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211197/
https://www.ncbi.nlm.nih.gov/pubmed/21711663
http://dx.doi.org/10.1186/1556-276X-6-147
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author Zhou, Hai
Fang, Guojia
Liu, Nishuang
Zhao, Xingzhong
author_facet Zhou, Hai
Fang, Guojia
Liu, Nishuang
Zhao, Xingzhong
author_sort Zhou, Hai
collection PubMed
description Pt/ZnO nanorod (NR) and Pt/modified ZnO NR Schottky barrier ultraviolet (UV) photodetectors (PDs) were prepared with different seed layers and metal oxide modifying layer materials. In this paper, we discussed the effect of metal oxide modifying layer on the performance of UV PDs pre- and post-deposition annealing at 300°C, respectively. For Schottky barrier UV PDs with different seed layers, the MgZnO seed layer-PDs without metal oxide coating showed bigger responsivity and larger detectivity (D(λ)*) than those of PDs with ZnO seed layer, and the reason was illustrated through energy band theory and the electron transport mechanism. Also the ratio of D(254)* to D(546)* was calculated above 8 × 10(2 )for all PDs, which demonstrated that our PDs showed high selectivity for detecting UV light with less influence of light with long wavelength.
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spelling pubmed-32111972011-11-09 Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect Zhou, Hai Fang, Guojia Liu, Nishuang Zhao, Xingzhong Nanoscale Res Lett Nano Express Pt/ZnO nanorod (NR) and Pt/modified ZnO NR Schottky barrier ultraviolet (UV) photodetectors (PDs) were prepared with different seed layers and metal oxide modifying layer materials. In this paper, we discussed the effect of metal oxide modifying layer on the performance of UV PDs pre- and post-deposition annealing at 300°C, respectively. For Schottky barrier UV PDs with different seed layers, the MgZnO seed layer-PDs without metal oxide coating showed bigger responsivity and larger detectivity (D(λ)*) than those of PDs with ZnO seed layer, and the reason was illustrated through energy band theory and the electron transport mechanism. Also the ratio of D(254)* to D(546)* was calculated above 8 × 10(2 )for all PDs, which demonstrated that our PDs showed high selectivity for detecting UV light with less influence of light with long wavelength. Springer 2011-02-15 /pmc/articles/PMC3211197/ /pubmed/21711663 http://dx.doi.org/10.1186/1556-276X-6-147 Text en Copyright ©2011 Zhou et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Zhou, Hai
Fang, Guojia
Liu, Nishuang
Zhao, Xingzhong
Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title_full Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title_fullStr Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title_full_unstemmed Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title_short Ultraviolet photodetectors based on ZnO nanorods-seed layer effect and metal oxide modifying layer effect
title_sort ultraviolet photodetectors based on zno nanorods-seed layer effect and metal oxide modifying layer effect
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211197/
https://www.ncbi.nlm.nih.gov/pubmed/21711663
http://dx.doi.org/10.1186/1556-276X-6-147
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AT liunishuang ultravioletphotodetectorsbasedonznonanorodsseedlayereffectandmetaloxidemodifyinglayereffect
AT zhaoxingzhong ultravioletphotodetectorsbasedonznonanorodsseedlayereffectandmetaloxidemodifyinglayereffect

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