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La0.88Te0.12MnO3/Si异质结的整流和光伏特性研究
  • ISSN号：1000-3290
  • 期刊名称：《物理学报》
  • 时间：0
  • 分类：TN315.2[电子电信—物理电子学]
  • 作者机构：[1]西北工业大学凝聚态结构与性质陕西省重点实验室,西安710072
  • 相关基金：国家自然科学基金（批准号：61078057 50702046）; 西北工业大学基础研究基金（批准号：NPU-FFR-JC200821 JC201048）;西北工业大学“翱翔之星”项目; 2009年西北工业大学本科毕业设计重点扶持项目资助的课题
作者： 陈鹏[1], 金克新[1], 陈长乐[1], 谭兴毅[1]
关键词： 异质结, 光生伏特效应, 电子掺杂, heterostructure, photovoltaic effect, electron-doped manganties
中文摘要：

采用脉冲激光沉积法制备了La0.88Te0.12MnO3（LTMO）/Si异质结,该异质结具有光生伏特效应和良好的整流特性.光生电压在394μs的时间内很快增加到最大值然后逐渐减小.在T=80K时,光生电压的最大值大约是13.7mV.随着温度的升高,热涨落致使光生电压最大值总体呈现减小趋势,而且是非线性减小,这主要是由LTMO层发生金属绝缘体转变而导致的LTMO层能带结构的变化引起的.

英文摘要：

The photovoltaic effect and the good rectifying behavior are observed in La0.88Te0.12MnO3（LTMO）/Si heterostructure fabricated by a pulsed laser deposition method.The photovoltage increases quickly to a maximum value at about 394 μs and then decreases gradually.The maximum photovoltage is about 13.7 mV at T = 80 K.The maximum photovoltage decreases with temperature increasing,which is attributed to the stronger thermal fluctuation.A nonlinear decrease of the maximum photovoltage in the photovoltages-temperature curve is observed,which is mainly caused by the change in the band structure of the LTMO layer due to the metal-insulator transition.

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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876