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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 精细化工全国重点实验室主任,教育部智能材料化工前沿科学中心执行主任,大连理工大学膜科学与技术研究开发中心主任
性别:女
毕业院校:中国科学院大连化物所
学位:博士
所在单位:化工学院
学科:化学工程. 膜科学与技术. 生物医学工程
联系方式:hgaohong@dlut.edu.cn
电子邮箱:hgaohong@dlut.edu.cn
Wavelength-tunable photoconductivity of dye-sensitized TiO2 nanoparticle films
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论文类型:期刊论文
发表时间:2012-09-01
发表刊物:OPTICS LETTERS
收录刊物:SCIE、EI、PubMed、Scopus
卷号:37
期号:17
页面范围:3585-3587
ISSN号:0146-9592
摘要:We report in this Letter that wavelength-tunable photodetectors (PDs) can be fabricated by dye-sensitized TiO2 nanoparticle film. The photoelectric response of the detectors is fast. The photocurrent intensity strongly depends on the absorption wavelength of the dye; thus the on/off ratio as a function of light wavelength can be tuned by absorbing different dye molecules. The corresponding mechanism is also discussed. The principle reported in this Letter can be used to fabricate full spectrum PDs with distinctive wavelength selectivity. (c) 2012 Optical Society of America
