Presentation 2011-05-20
Frequency Response of Polycrystalline Silicon Photoconductor
Hideyuki OTOSAKA, Shingo EBUCHI, Takeo MARUYAMA, Koichi IIYAMA, Keisuke OHDAIRA, Hideki MATSUMURA,
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Abstract(in English) We fabricated a polycrystalline silicon (poly-Si) photoconductor and measured a sensitivity and frequency characteristics at a wavelength of 650 nm. Poly-Si layers are obtained by thermal annealing of amorphous silicon (a-Si). The a-Si is heated in a nitrogen atmosphere at 600℃, 100 min. The a-Si is deposited by the catalytic chemical vapor deposition (Cat-CVD). The electrodes are patterned by the photolithography and the liftoff process. The electrodes pattern is formed by comb structure, the receiving area of 50×50 μm^2 and the electrode width of 2 pm. The sensitivity of 36 mA/W and the maximum bandwidth of 30 MHz were obtained at the wavelength of 650 nm and the bias voltage of 30 V. The 0.2 μm thick of poly-Si film is obtained by dry etching method of 1.2 μm poly-Si. We measured the optical characteristics of 0.2 pm thick poly-Si photoconductor is also measured. The sensitivity of 0.8 mA/W and the maximum bandwidth of 200 MHz were obtained at the wavelength of 650 nm and the bias voltage of 30 V.
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Keyword(in English) photoconductor / amorphous silicon / thermal anneal / frequency response / Cat-CVD
Paper # LQE2011-1
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Conference Information
Committee LQE
Conference Date 2011/5/13(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Frequency Response of Polycrystalline Silicon Photoconductor
Sub Title (in English)
Keyword(1) photoconductor
Keyword(2) amorphous silicon
Keyword(3) thermal anneal
Keyword(4) frequency response
Keyword(5) Cat-CVD
1st Author's Name Hideyuki OTOSAKA
1st Author's Affiliation Graduate School of Natural Science and Technology, Kanazawa University()
2nd Author's Name Shingo EBUCHI
2nd Author's Affiliation Graduate School of Natural Science and Technology, Kanazawa University
3rd Author's Name Takeo MARUYAMA
3rd Author's Affiliation Graduate School of Natural Science and Technology, Kanazawa University
4th Author's Name Koichi IIYAMA
4th Author's Affiliation Graduate School of Natural Science and Technology, Kanazawa University
5th Author's Name Keisuke OHDAIRA
5th Author's Affiliation Materials Science, Japan Advanced Institute of Science and Technology School
6th Author's Name Hideki MATSUMURA
6th Author's Affiliation Materials Science, Japan Advanced Institute of Science and Technology School
Date 2011-05-20
Paper # LQE2011-1
Volume (vol) vol.111
Number (no) 56
Page pp.pp.-
#Pages 4
Date of Issue