Figure 5
From: Enhanced solar energy conversion in Au-doped, single-wall carbon nanotube-Si heterojunction cells
Current–voltage characteristics, EQE of the solar cell, and optical absorption spectra of SCNT. (a) Current–voltage characteristics of a typical SCNT/n-Si and Au-doped SCNT/n-Si heterojunction device. (b) The external quantum efficiency (EQE) of the solar cell obtained before (black line) and after (red line) Au doping. (c) Optical absorption spectra of SCNT before (black line) and after (red line) doping.