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Nature Photonics, 2015, 9, 520–524. Efficient polymer solar cells employing a non-conjugated small-molecule electrolyte
作者:Xinhua Ouyang, Ruixiang Peng, Ling Ai, Xingye Zhang, Ziyi Ge*
關鍵字:OPV
論文來源:期刊
具體來源:Nature Photonics, 2015, 9, 520-524.
發表時間:2015年
  Polymer solar cells have drawn a great deal of attention due to the attractiveness of their use in renewable energy sources that are potentially lightweight and low in cost. Recently, numerous significant research efforts have resulted in polymer solar cells with power conversion efficiencies in excess of 9%.Nevertheless, further improvements in performance are sought for commercial applications. Here, we report polymer solar cells with a power conversion efficiency of 10.02% that employ a non-conjugated small-molecule electrolyte as an interlayer. The material offers good contact for photogenerated charge carrier collection and allows optimum photon harvesting in the device. Furthermore, the enhanced performance is attributed to improved electron mobility, enhanced active-layer absorption and properly active-layer microstructures with optimal horizontal phase separation and vertical phase gradation. Our discovery opens a new avenue for single-junction devices by fully exploiting the potential of various material systemswith efficiency over 10%.
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