Unexpected long-term instability of ZnO nanowires "protected" by a TiO2 shell

Yang Yang; Sik Kim Dong; Yong Qin; Andreas Berger; Roland Scholz; Hyunbin Kim; Mato Knez; Ulrich Gösele

doi:10.1021/ja906120a

Unexpected long-term instability of ZnO nanowires "protected" by a TiO₂ shell

Yang Yang
, Sik Kim Dong
, Yong Qin
, Andreas Berger
, Roland Scholz
, Hyunbin Kim
, Mato Knez
, Ulrich Gösele

Max Planck Institute of Microstructure Physics

科研成果: 期刊稿件 › 文章 › 同行评审

42 引用（Scopus）

摘要

(Chemical Equation Presented) We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO₂ shell even under ambient conditions. Trace UV photons from daylight and moisture from air, which generally have negligible effects on "bare" ZnO nanowires, can obviously enhance their photocorrosion due to the high bandgap of TiO₂ as well as this conformal core-shell heterostructure.

源语言	英语
页（从-至）	13920-13921
页数	2
期刊	Journal of the American Chemical Society
卷	131
期	39
DOI	https://doi.org/10.1021/ja906120a
出版状态	已出版 - 7 10月 2009
已对外发布	是

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AU - Qin, Yong

AU - Berger, Andreas

AU - Scholz, Roland

AU - Kim, Hyunbin

AU - Knez, Mato

AU - Gösele, Ulrich

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Y1 - 2009/10/7

N2 - (Chemical Equation Presented) We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO2 shell even under ambient conditions. Trace UV photons from daylight and moisture from air, which generally have negligible effects on "bare" ZnO nanowires, can obviously enhance their photocorrosion due to the high bandgap of TiO2 as well as this conformal core-shell heterostructure.

AB - (Chemical Equation Presented) We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO2 shell even under ambient conditions. Trace UV photons from daylight and moisture from air, which generally have negligible effects on "bare" ZnO nanowires, can obviously enhance their photocorrosion due to the high bandgap of TiO2 as well as this conformal core-shell heterostructure.

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Unexpected long-term instability of ZnO nanowires "protected" by a TiO2 shell

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Unexpected long-term instability of ZnO nanowires "protected" by a TiO₂ shell