Modification of Dye-Sensitized Solar Cells With Sputter-Deposited Titanium Dioxide Blocking Layer for Enhanced Photovoltaic Performance Under Different Illuminations oleh Jung-Chuan Chou, Po-Feng Chen, Po-Hui Yang, Chih-Hsien Lai, Po-Yu Kuo, Yu-Hsun Nien, Shang-Wen Zhuang, Ruei-Hong Syu, Yu-Han Huang