Enhanced near-infrared responsivity of silicon photodetector by the impurity photovoltaic effect*
Yuan Ji-Rena),b)†, Huang Hai-Bina), Deng Xin-Huab), Liang Xiao-Junb), Zhou Nai-Gena), Zhou Langa)‡
       
Variations of improvement of responsivities Δ R with incident wavelength for different internal reflection coefficients at the back surface of the cell.