| 铁铪双掺铌酸锂晶体的光致散射研究 |
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| 引用本文： | 陈洪建,张维连,阎文博,李养贤.铁铪双掺铌酸锂晶体的光致散射研究[J].人工晶体学报,2009,38(2):506-509. |
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| 作者姓名： | 陈洪建 张维连 阎文博 李养贤 |
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| 作者单位： | 河北工业大学材料科学与工程学院,天津,300130 |
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| 基金项目： | 河北省自然科学基金，河北省教育厅科研计划，天津市自然科学基金 |
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| 摘 要： | 本文研究了铁铪双掺铌酸锂晶体的光致散射行为,对比了铁铪双掺铌酸锂晶体还原前后的光致散射结果.结果表明:晶体中的锂空位可使晶体暗电导增加并引起光致散射的泵浦光强阈值效应;高泵浦光强下产生的严重光致散射起源于晶体中的较高的三价铁离子浓度.铁铪双掺铌酸锂晶体具有较好的抑制光致散射的能力.
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| 关 键 词： | 铌酸锂 光致散射 阈值效应 |
Study on the Light-induced Scattering in LiNbO_3 Crystals Double Doped with Fe and Hf |
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| CHEN Hong-jian,ZHANG Wei-lian,YAN Wen-bo,LI Yang-xian.Study on the Light-induced Scattering in LiNbO_3 Crystals Double Doped with Fe and Hf[J].Journal of Synthetic Crystals,2009,38(2):506-509. |
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| Authors: | CHEN Hong-jian ZHANG Wei-lian YAN Wen-bo LI Yang-xian |
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| Institution: | School of Materials Science and Engineering;Hebei University of Technology;Tianjin 300130 |
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| Abstract: | Light-induced scattering in LiNbO3: Fe crystals double doped with Fe and Hf was studied in this paper. The results of Light-induced scattering before and after reduction were contrasted. The results show that dark conductivity increased and the threshold effect of the pump light intensity for the light-induced scattering occured becasuse of the Li vacancies. Serious light-induced scattering at high pump intensity could be attributed to the high Fe3+ concentration in the crystals. The LiNbO3: Fe, Hf crystals... |
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| Keywords: | lithium niobate light-induced scattering photovoltaic threshold effect |
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