Zhang Xiao-Dan, Zhao Ying, Gao Yan-Tao, Chen Fei, Zhu Feng, Wei Chang-Chun, Sun Jian, Geng Xin-Hua, Xiong Shao-Zhen. Investigation of improved conversion efficiency of microcrystalline silicon thin film solar cellsJ. Acta Physica Sinica, 2006, 55(12): 6697-6700. DOI: 10.7498/aps.55.6697