NDLI: Effect of MgO Surface Modification on the TiO2 Nanowires Electrode for Self-Powered UV Photodetectors

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Effect of MgO Surface Modification on the TiO2 Nanowires Electrode for Self-Powered UV Photodetectors

Content Provider	Semantic Scholar
Author	Ni, Shiming Guo, Fengyun Wang, Dongbo Liu, Gang Xu, Zhikun Kong, Lingping Wang, Jinzhong Jiao, Shujie Zhang, Yong Yu, Qingjiang Luo, Jiawei Wang, Bao Li, Zhenghao Zhang, Chengcheng Zhao, Liancheng
Copyright Year	2018
Abstract	TiO2-based core–shell structure has gained enormous significance and has developed as a promising candidate in photoelectrochemical (PEC) devices due to its excellent properties. Despite studies, the surface/interface chemistry in these nanostructures has not been fully understood and there is still much room to further improve the performance of related PEC devices. Here, using a closely integrated experimental investigation and mechanism analysis, we scrutinized the intrinsic role of the MgO coating in the photocurrent enhancement of TiO2@MgO core–shell structured UVPDs. We evidenced that after coating with MgO, the photocurrent of UVPDs has been significantly enhanced and the optimal coating time was found to be 45 min. A large responsivity of 365 mA W–1 at 360 nm and a simultaneously excellent on/off ratio of 16 739 are achieved, which have rarely reported previously. In addition, the structure–property relationships are well established in all studied UVPDs through comparing investigations. The super.
Starting Page	7265
Ending Page	7272
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1021/acssuschemeng.7b04188
Volume Number	6
Alternate Webpage(s)	http://www.hpstar.ac.cn/upload/files/2018/8/9103936586.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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