GeSi/Si Heterojunction Infrared Photodetector.
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- Wada Hideo
- 2nd Research Center, TRDI, Japan Defense Agency
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- Kanno Toshio
- 2nd Research Center, TRDI, Japan Defense Agency
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- Nagashima Mitsuhiro
- 2nd Research Center, TRDI, Japan Defense Agency
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- Uchikoshi Masahiro
- 2nd Research Center, TRDI, Japan Defense Agency
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- Yutani Naoki
- Mitsubishi Electric Corporation
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- Matsubara Toshio
- Mitsubishi Electric Corporation
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- Nakanishi Junji
- Mitsubishi Electric Corporation
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- Kumada Norimasa
- Mitsubishi Electric Corporation
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- Kimata Masafumi
- Mitsubishi Electric Corporation
Bibliographic Information
- Other Title
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- GeSi/Siヘテロ接合赤外線受光素子
- GeSi Si ヘテロ セツゴウ セキガイセン ジュコウ ソシ
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Abstract
Monolithic structures, in which the photodetectors are combined with signal multiplexers without bump bonding technology, are beneficial in order to manufacture high resolution infrared focal plane arrays and reduce their production cost. The GeSi/Si heterojunction photodetector can be easily integrated monolithically on Si multiplexers and is one of the most promising infrared detectors for high resolution focal plane arrays detecting the infrared irnage in the 10-μm spectral band. We have fabricated GeSi/Si heterojunction photodetectors by MBE technology and evaluated their photoresponse and dark current, and investigated the feasibility of the GeSi/Si heterojunction infrared focal plane array. The quantum efficiency has a maximum value at a GeSi thickness of 20nm and the cutoff wavelength can be tailored by the composition of the GeSi film. It was confirmed that the cutoff wavelength can also be controlled by the impurity concentration in the GeSi film. The dark current exhibited an ideal thermionic emission characteristic in a wide temperature range. The performance obtained in the preliminary experiments indicates that the GeSi/Si heterojunction technology has sufficient capability in realizing focal plane arrays with full TV resolution for the 10-μm infrared spectral band.
Journal
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- IEEJ Transactions on Sensors and Micromachines
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IEEJ Transactions on Sensors and Micromachines 117 (2), 69-74, 1997
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679437951744
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- NII Article ID
- 10004831929
- 10004059038
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- NII Book ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL BIB ID
- 4128883
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed