Citation: Yuan LIN, Xu Rui XIAO, Wei Ying LI, Xue Ping LI, Wei Bo WANG, Jing Yong CHENG. Time-resolved Microwave Conductivity Studies on the Chemical Treatment of the Nanocrystalline Porous TiO²Films[J]. Chinese Chemical Letters, ;2003, 14(7): 734-736. shu

Time-resolved Microwave Conductivity Studies on the Chemical Treatment of the Nanocrystalline Porous TiO²Films

1.
Center for molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080;
2.
Technical Institute of Physical Chemistry, Chinese Academy of Sciences, Beijing 100101

Received Date: 26 August 2002

Fund Project: This work was supported by National Research Fund for Fundamental Key Project (G2000028205), Innovative Foundation of Chinese Academy of Sciences (KGCX2-303- 02) and the Project of the National Natural Science Foundation of China (29873057).

Effect of Ti(iso-C₃H₇O)₄ treatment on the photoinduced charge carrier kinetics of nanocrystalline porous TiO₂ films is studied by time-resolved microwave conductivity measurements. Analysis of the transient photoconductivity decays indicates that Ti(iso-C₃H₇O)₄ treatment leads to an increased concentration of photogenerated charge carriers and a fast interfacial transfer rate of holes via the surface modification of the freshly growing TiO₂ nanocrystallites.
- Nanocrystalline porous TiO₂ films,
- chemical treatment,
- transient photoconductivity,
- charge carrier kinetics,
- time-resolved microwave conductivity
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