Regulation of UV light on the hot-electron current of Au/TiO2:Tb3+Schottky diodes

doi:10.1016/j.matlet.2021.131267

	Regulation of UV light on the hot-electron current of Au/TiO2:Tb3+Schottky diodes
	Liu, Shu Li 1,2,3; Fei, Guang Tao 1,2; Xia, Kai 1,2,3; Xu, Shao Hui 1,2; Gao, Xu Dong 1,2
刊名	MATERIALS LETTERS
	2022-02-01
卷号	308
关键词	Semiconductors Sensors Doping TiO 2 Barriers
ISSN号	0167-577X
DOI	10.1016/j.matlet.2021.131267
通讯作者	Fei, Guang Tao(gtfei@issp.ac.cn) ; Xu, Shao Hui(shxu@issp.ac.cn)
英文摘要	Tb3+-doped TiO2 (TiO2:Tb3+) films are synthesized by a facile sol-gel method. The hot-electron current of Au/ TiO2:Tb3+ Schottky diodes was enhanced by UV light decreasing the height of Schottky barrier. Compared with pure TiO2, doping Tb3+ can reduce the background current originating from the internal photoelectric effect in TiO2, and improve the on/off ratio. This is due to the energy and charge transfer mechanism from TiO2 to Tb3+. Photogenerated electrons in TiO2:Tb3+ films excited by UV light can be consumed by radiative electron transitions from the level 5D4 to the 7Fj (j = 6, 5, 4, 3) for Tb3+. This is beneficial and effective to regulate the electronic state of optoelectronic materials.
资助项目	National Natural Science Foundation of China[51671183] ; National Natural Science Foundation of China[51701207] ; National Natural Science Foundation of China[51971210]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000729362900008
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126422]
专题	中国科学院合肥物质科学研究院
通讯作者	Fei, Guang Tao; Xu, Shao Hui
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shu Li,Fei, Guang Tao,Xia, Kai,et al. Regulation of UV light on the hot-electron current of Au/TiO2:Tb3+Schottky diodes[J]. MATERIALS LETTERS,2022,308.
APA	Liu, Shu Li,Fei, Guang Tao,Xia, Kai,Xu, Shao Hui,&Gao, Xu Dong.(2022).Regulation of UV light on the hot-electron current of Au/TiO2:Tb3+Schottky diodes.MATERIALS LETTERS,308.
MLA	Liu, Shu Li,et al."Regulation of UV light on the hot-electron current of Au/TiO2:Tb3+Schottky diodes".MATERIALS LETTERS 308(2022).