Enhanced near-infrared responsivity of silicon photodetector by the impurity photovoltaic effect<xref ref-type="fn" rid="cpb142342fn1">*</xref>

Enhanced near-infrared responsivity of silicon photodetector by the impurity photovoltaic effect*

Yuan Ji-Ren^a),^b)†, Huang Hai-Bin^a), Deng Xin-Hua^b), Liang Xiao-Jun^b), Zhou Nai-Gen^a), Zhou Lang^a)‡

Variations of external quantum efficiency (EQE) of the photodetector with wavelength for different indium concentrations.