| Er2O3纳米晶光伏特性及谱带解析 |
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| 引用本文： | 崔毅,王德军,王宝辉,李铁津,董相廷,洪广言.Er2O3纳米晶光伏特性及谱带解析[J].物理化学学报,1995,11(1):1-4. |
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| 作者姓名： | 崔毅 王德军 王宝辉 李铁津 董相廷 洪广言 |
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| 作者单位： | Department of Chemistry,Jilin University, Changchun 130023,Institute of Applied Chemistry,Academia Sinica,Changchun 130022 |
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| 基金项目： | 国家教委优秀年轻教师基金 |
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| 摘 要： | 纳米做教是介于体相材料和分子或原子之间的新型材料，表现出许多超常的电、热、光、磁及催化的特性，因此引起人们高度的重视［1，2］．目前对其光学、磁学、力学和比热等研究已有大量的报导3]．但是，对于稀土氧化物纳米材料的合成及性质的研究，尤其对它们的电学性质、电子输运方式和光电行为报导较少.本文利用表面光电压谱（SPS）技术对不同粒径的Er2O3纳米晶进行了表面光伏特性的研究，并结合漫反射吸收光谱对其谱带进行了解析，发现，除f→f跃迁外，在300～550nm区间有一定吸收边带，此带可归属于O2p→Er4f电荷转移跃迁．随着样品…
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| 关 键 词： | Er2O3 纳米晶 表面光伏 |
| 收稿时间： | 1994-07-23 |
| 修稿时间： | 1994-09-26 |
The Photovoltage Properties and the Spectrum Analyses of Nanocrystalline Er_2O_3 |
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| Cui Yi,Wang Dejun, Wang Baohui, Li Tiejin.The Photovoltage Properties and the Spectrum Analyses of Nanocrystalline Er_2O_3[J].Acta Physico-Chimica Sinica,1995,11(1):1-4. |
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| Authors: | Cui Yi Wang Dejun Wang Baohui Li Tiejin |
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| Institution: | Department of Chemistry,Jilin University, Changchun 130023|Institute of Applied Chemistry,Academia Sinica,Changchun 130022 |
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| Abstract: | The diffuse reflectance spectra of nanocrystalline Er2O3 were measured in theUV-vis region. It was found that the f →f transition bands become stronger with the decrease of the size of particles. The tail-band in the range of 300 ~ 550nm was assigned to the O2p→Er4f transition. Both behavior of light-induced charge transfer and photovoltaic properties of nanocrystalline Er2O3 were investigated with surface photovoltage spectroscopy (SPS). The SPS shows that two peaks appear at 340nm (p1) and 385nm (p2).The observed spectral features can be explained in terms of charge transfer and interband transition. |
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| Keywords: | Er_2O_3 Nanocrystalline Photovoltage |
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