Li, Xiaodong, Dingwen Zhang, Si Chen, Heng Zhang, Zhuo Sun, Sumei Huang, and Xijiang Yin. 2011. “Dye-Sensitized Solar Cells With Higher Jsc by Using Polyvinylidene Fluoride Membrane Counter Electrodes”. Nano-Micro Letters 3 (3):195-99. https://doi.org/10.1007/BF03353672.