Positive and Negative Photoconductivity Conversion Induced by H2O Molecule Adsorption in WO3 Nanowire

Positive and Negative Photoconductivity Conversion Induced by H2O Molecule Adsorption in WO3 Nanowire

Abstract Negative photoconductivity effect has been observed in the Au/WO3 nanowire/Au devices in a high humidity environment, which might be attributed to the accumulation of H+ ions on the surface of WO3 nanowire. Under illumination with violet light (445 nm), the photo-excited holes can oxidize t...

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Bibliographic Details
Main Authors: Yahui Liu, Peng Fu, Yanling Yin, Yuehua Peng, Wenjun Yang, Gang Zhao, Weike Wang, Weichang Zhou, Dongsheng Tang
Format: Article
Language:English
Published: SpringerOpen 2019-04-01
Series:Nanoscale Research Letters
Subjects:
Hexagonal WO3 nanowire
Negative photoconductivity
Positive photoconductivity
Hydrogen ion
Schottky emission
Online Access:http://link.springer.com/article/10.1186/s11671-019-2978-y

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http://link.springer.com/article/10.1186/s11671-019-2978-y

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