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Published on: May 4, 2016
The pressure-induced photoconductivity enhancement of black-TiO2
Bingyan Liu1,2, Tianfeng Duan2, Songhao Guo2,3
1School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, 266580, China. zhangj@upc.edu.cn.
Abstract:
The pressure-induced enhancement of the optoelectronic properties of black-TiO2 nanocrystals is presented. The underlying mechanisms are elucidated by comparing the behavior with that of white-TiO2. The disordered layer in black-TiO2 contributes to the enhanced photoconductivity, while the crystal structure dominates in relation to photoconductivity variations. Our findings provide valuable insights for gaining a fundamental understanding of black-TiO2.

