| TiO2单晶的表面光电压谱研究 |
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| 引用本文： | 回峥,徐金杰,谢腾峰,王德军,李铁津,孙家锺.TiO2单晶的表面光电压谱研究[J].高等学校化学学报,1999,20(9):1458-1459. |
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| 作者姓名： | 回峥 徐金杰 谢腾峰 王德军 李铁津 孙家锺 |
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| 作者单位： | 吉林大学化学系, 理论化学研究所, 长春 130023 |
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| 基金项目： | 吉林省科技发展计划;; |
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| 摘 要： | TiO2由于其优异的光电性质及高的化学稳定性而受到广泛关注,并且被应用于有机污染物光降解1]、太阳能光电转换2]等诸多领域.由于制备方法不同,TiO2往往会呈现出不同的光电性质,尽管其晶型与粒度可能相差甚微3].近年来研究表明,除晶型、粒度等因素外,表面原子排布在决定材料光电性质方面同样有重要贡献4,5].本文采用表面光电压谱(SPS)及场诱导表面光电压谱(EFSPS)研究了TiO2单晶(001)面的光伏响应.
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| 关 键 词： | TiO2单晶 表面光电压港 电场场诱导表面光电谱 |
| 收稿时间： | 1999-05-12 |
Studies on the Surface of TiO2(001) Single Crystal by Surface Photovoltage Spectroscopy |
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| Hui Zheng,XU Jin-jie,XIE Teng-Feng,WANG De-Jun,LI Tie-Jin,SUN Chia-Chung.Studies on the Surface of TiO2(001) Single Crystal by Surface Photovoltage Spectroscopy[J].Chemical Research In Chinese Universities,1999,20(9):1458-1459. |
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| Authors: | Hui Zheng XU Jin-jie XIE Teng-Feng WANG De-Jun LI Tie-Jin SUN Chia-Chung |
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| Institution: | Department of Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China |
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| Abstract: | Tio2(001) surface of rutile TiO2 single crystals was studied by surface photovoltage spectrum (SPS) and electrical field-induced surface photovoltage spectrum (EFISPS)techni(lue. The two SPS responses peak at 360 nm and 410 nm were identified as direct transition and indirect transition of TiO2(001) plane, respectively. And it was found that the indirect transition of TiO2 was very sensitive to the external electrical field. These results indicate that SPS and EFlSPS are effective means to study the opto-electrical characteristics ofsemico nd uctors. |
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| Keywords: | TiO_2 single crystals Surface photovoltage spectroscopy Electrical fleld-induced surface photovoltage spectroscopy |
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