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STM and STS investigations of Ce-doped TiO_2 nanoparticles 被引量：4

STM and STS investigations of Ce-doped TiO_2 nanoparticles
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摘要 Ce-doped titanium oxide nanoparticles were investigated in the paper. The surface structures of undoped and Ce-doped TiO2 nanoparticles were observed by scanning tunneling microscopy （STM）. The experimental results of scanning tunneling spectroscopy （STS） show that the surface electronic structures of TiO2 nanoparticles are modified by introducing new electronic states in the surface band gap through cerium ion doping. The results are discussed in terms of the influence of doping concentration on the surface band gap of TiO2. Ce-doped titanium oxide nanoparticles were investigated in the paper. The surface structures of undoped and Ce-doped TiO2 nanoparticles were observed by scanning tunneling microscopy （STM）. The experimental results of scanning tunneling spectroscopy （STS） show that the surface electronic structures of TiO2 nanoparticles are modified by introducing new electronic states in the surface band gap through cerium ion doping. The results are discussed in terms of the influence of doping concentration on the surface band gap of TiO2.
作者 HOU Tinghong MAO Jian ZHU Xiaodong TU Mingjing
机构地区 College of Materials Science and Engineering
出处 《Rare Metals》 SCIE EI CAS CSCD 2006年第4期331-336,共6页 稀有金属（英文版）
关键词 semiconductor materials TiO2 nanoparticle STM/STS Ce-doping semiconductor materials TiO2 nanoparticle STM/STS Ce-doping
分类号 TN304.21 [电子电信—物理电子学]
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Rare Metals
2006年 第4期

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