High Efficiency Flexible Polymer Solar Cells Based on PET Substrates with a Nonannealing Active Layer. - Kao-Hua Tsai; Jing-Shun Huang; Meng-Yueh Liu; Cha-Hsin Chao; Chun-Yu Lee; Shih-Che Hung; Ching-Fuh Lin (Journal of The Electrochemical Society, 2009)