Abstract
MoS2/p-Ge/n-Ge bipolar heterojunction phototransistor is fabricated, which can detect from VIS to NIR. The responsivities are 35.21 and 133.56 A/W at 466 and 1550 nm, respectively. Photocurrent amplification of BHP, 6 times larger than photocurrent of p-Ge/n-Ge and p-Ge/MoS2 photodiodes.
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