Unexpected long-term instability of ZnO nanowires "protected" by a TiO2 shell.
Unexpected long-term instability of ZnO nanowires "protected" by a TiO2 shell.
复制标题
DOI：
10.1021/ja906120a
复制
发表时间：
2009-09
影响因子：
15
通讯作者：
Yang Yang-Yang;Dong Sik Kim;Yong Qin;A. Berger;R. Scholz;Hyunbin Kim;M. Knez;U. Gösele
中科院分区：
文献类型：
--
作者：
Yang Yang-Yang;Dong Sik Kim;Yong Qin;A. Berger;R. Scholz;Hyunbin Kim;M. Knez;U. Gösele
我们揭示了（0001）取向的ZnO纳米线的不稳定性加剧时，他们被一个TiO（2）壳沉积，即使在环境条件下。来自日光的微量紫外光子和来自空气的湿气通常对“裸”ZnO纳米线的影响可以忽略不计，但由于TiO（2）的高带隙以及这种共形核-壳异质结构，它们可以明显增强其光腐蚀。
We revealed the aggravated instability of (0001)-oriented ZnO nanowires when they were deposited by a TiO(2) 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 TiO(2) as well as this conformal core-shell heterostructure.