Improved performance of microcrystalline silicon solar cell with graded-band-gap silicon oxide buffer layer

Shi Zhen-Liang, Ji Yun, Yu Wei†, Yang Yan-Bin, Cong Ri-Dong, Chen Ying-Juan, Li Xiao-Wei‡, Fu Guang-Sheng

(a) and (b) Raman spectra of the single layer deconvoluted into three Gaussian peaks, (c) Raman spectra of cell A and cell B excited with a green laser and a red laser from p-layer side.