DOI: 10.1002/adfm.201000857. Heterointegration of Pt/Si/Ag Nanowire Photodiodes and Their Photocatalytic Properties

Heterointegration of Pt/Si/Ag Nanowire Photodiodes and Their Photocatalytic Properties

10.1002/adfm.201000857

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

AbstractPhotocatalyst mediated photoelectrochemical processes can make use of the photogenerated electrons and holes onsite for photocatalytic redox reactions, and enable the harness and conversion of solar energy into chemical energy, in analogy to natural photosynthesis. However, the photocatalysts available to date are limited by either poor efficiency in the visible light range or insufficient photoelectrochemical stability. Here, it is shown that a Pt/Si/Ag nanowire heterostructure can be rationally synthesized to integrate a nanoscale metal‐semiconductor Schottky diode encased in a protective insulating shell with two exposed metal catalysts. The synthesis of Pt/Si/Ag nanowire diodes involves a scalable process including the formation of silicon nanowire array through wet chemical etching, electrodeposition of platinum and photoreduction of silver. The Pt/Si/Ag diodes exhibit highly efficient photocatalytic activity for a wide range of applications including environmental remediation and solar fuel production in the visible range. In this article, photodegradation of indigo carmine and 4‐nitrophenol are used to evaluate the photoactivity of Pt/Si/Ag diodes. The Pt/Si/Ag diodes also show high activity for photoconversion of formic acid into carbon dioxide and hydrogen.

Bibliography

Qu, Y., Xue, T., Zhong, X., Lin, Y., Liao, L., Choi, J., & Duan, X. (2010). Heterointegration of Pt/Si/Ag Nanowire Photodiodes and Their Photocatalytic Properties. Advanced Functional Materials, 20(18), 3005â3011. Portico.

Authors 7

Yongquan Qu (first)
Teng Xue (additional)
Xing Zhong (additional)
Yung‐Chen Lin (additional)
Lei Liao (additional)
Jina Choi (additional)
Xiangfeng Duan (additional)

References 54 Referenced 29

Dates

Type	When
Created	15 years, 1 month ago (July 22, 2010, 6:07 a.m.)
Deposited	1 year, 10 months ago (Oct. 11, 2023, 11:39 a.m.)
Indexed	3 months, 1 week ago (May 17, 2025, 12:48 a.m.)
Issued	14 years, 11 months ago (Sept. 14, 2010)
Published	14 years, 11 months ago (Sept. 14, 2010)
Published Online	14 years, 11 months ago (Sept. 14, 2010)
Published Print	14 years, 11 months ago (Sept. 23, 2010)

Funders 0

None

BibTeX

@article{Qu_2010, title={Heterointegration of Pt/Si/Ag Nanowire Photodiodes and Their Photocatalytic Properties}, volume={20}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.201000857}, DOI={10.1002/adfm.201000857}, number={18}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Qu, Yongquan and Xue, Teng and Zhong, Xing and Lin, Yung‐Chen and Liao, Lei and Choi, Jina and Duan, Xiangfeng}, year={2010}, month=sep, pages={3005–3011} }

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