1.55-mum and infrared-band photoresponsivity of a Schottky barrier porous silicon photodetector.
We have investigated the spectral responsivity of porous silicon Schottky barrier photodetectors in the wavelength range 0.4-1.7 mum . The photodetectors show strong photoresponsivity in both the visible and the infrared bands, especially at 1.55 mum . The photocurrent can reach 1.8 mA at a reverse bias of 6 V under illumination by a 1.55-mum , 10-mW laser diode. The corresponding quantum efficiency is 14.4%.
Lee
M K
MK
Chu
C H
CH
Wang
Y H
YH
Sze
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SM