Photo-Induced Current Transient Spectroscopy in High-Resistivity Bulk Material. I. Computer Controlled Multi-Channel PICTS System with High-Resolution
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- Yoshie Osamu
- Department of Electronics, Kogakuin University
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- Kamihara Mitsuo
- Department of Electronics, Kogakuin University
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A computer controlled multi-channel PICTS system which allows one to detect many deep trapping levels in high-resistivity bulk material by only a single thermal scanning process, has been developed. In order to obtain the normalized PICTS signal, an automatic gain controlled pre-amplifier has been used. An expanded-scale technique which allows one to distinguish fine PICTS peaks has been proposed. This expanded-scale technique is very useful especially for the case when many PICTS peaks are closely superposed. In high-resistivity bulk CdS single crystal, it has been found that PICTS spectrum-shape and number of detected peaks depend strongly upon the wavelength of exciting laser light, and that the trap-parameters obtained are not strongly influenced by light intensity. The PICTS method may be superior on many points, especially in peak-separation, to the thermally stimulated current method.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 22 (4), 621-628, 1983
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詳細情報 詳細情報について
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- CRID
- 1571135652363317888
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- NII論文ID
- 110003909710
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- NII書誌ID
- AA10457675
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- 本文言語コード
- en
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- データソース種別
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