Acta Scientiarum Naturalium Universitatis Pekinensis

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Metal Ion Dopants Dependence of Optical Absorbance in TiO2 Nanoclusters

WANG Dehuang1, LIANG Ruisheng1, CHENG Humin2, MA Jiming2, WANG Yanqin2, ZHANG Dongbai2   

  1. 1College of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, 100871; 2College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871
  • Received:2001-12-04 Online:2002-09-20 Published:2002-09-20


王德煌1, 梁瑞生1, 程虎民2, 马季铭2, 王艳芹2, 张冬柏2   

  1. 1北京大学物理学院,人工微结构和介观物理国家重点实验室,北京,100871; 2北京大学化学与分子工程学院,北京,100871

Abstract: The optical absorbance of metal ion doped TiO2 nanoclusters in UV and visible region was determined at room temperature. The optical absorbance of TiO2 after doping metal ions increased considerably and a red shift of the band-gap took place. A nonlinear relationship is shown between the absorbance change and wavelength.

Key words: metal ions, TiO2 nanoclusters, optical absorbance

摘要: 实验测量掺杂不同金属离子的TiO2纳米晶簇在UV和可见波段的室温光吸收谱。金属离子掺杂明显增强TiO2纳米晶簇的光吸收。TiO2带隙发生红移。光吸收增加量随波长非线性变化。

关键词: 金属离子, TiO2纳米晶簇, 光吸收

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