| Impedance effect of manganite thin film-based photodetectors |
| K. Zhao; M. He; H. B. Lu
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| 2008
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| 发表期刊 | Chinese Science Bulletin
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| ISSN | 1001-6538
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| 卷号 | 53期号:2页码:313-316 |
| 摘要 | We report on the photodetector structures based on perovskite manganite La0.67Ca0.33MnO3 thin films on tilted SrTiO3 (001) substrates. The photovoltaic effect has been observed in response to excitation by 308 nm ultraviolet laser pulse irradiation in duration of 20 ns at room temperature. The outputs obtained required no amplification. To reduce the deformation of the signal detected, a series of testing measurements were made to investigate the impedance effect. When the impedance at the oscilloscope end matched to the co-axis cable, the signal trace was almost triangular and symmetrical, with response time equal to the excitation laser. In addation, the response linearly depends on the irradiated area for low on-sample energy. The devices work well under unbiased conditions and so are simple to configure for practical applications. |
| 部门归属 | [zhao, kun] china univ petr, dept math & phys, beijing 102249, peoples r china. [he, meng; lue huibin] chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. [zhao, kun] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zhao, k (reprint author), china univ petr, dept math & phys, beijing 102249, peoples r china;zhk@cup.edu.cn
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| 关键词 | Manganite
Photodetector
Thin Film
Impedance Effect
Induced Persistent Photoconductivity
Colossal Magnetoresistance
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| URL | 查看原文
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| WOS记录号 | WOS:000252973900020
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/33363
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
K. Zhao,M. He,H. B. Lu. Impedance effect of manganite thin film-based photodetectors[J]. Chinese Science Bulletin,2008,53(2):313-316.
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| APA |
K. Zhao,M. He,&H. B. Lu.(2008).Impedance effect of manganite thin film-based photodetectors.Chinese Science Bulletin,53(2),313-316.
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| MLA |
K. Zhao,et al."Impedance effect of manganite thin film-based photodetectors".Chinese Science Bulletin 53.2(2008):313-316.
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