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首页> 外文期刊>Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion >Low work function metal modified ITO as cathode for inverted polymer solar cells
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Low work function metal modified ITO as cathode for inverted polymer solar cells

机译：低功函数金属改性的ITO作为反向聚合物太阳能电池的阴极

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Inverted polymer solar cells using an ultrathin layer (～1 nm) of low work function metal (Ca, Mg, Al, and Ag) on indium tin oxide (ITO) substrate as the cathode, MoO_3/Au as the anode, and a blend of poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) as the active layer were investigated. A comparative study between the conventional forward (ITO/MoO_3/P3HT:PCBM/Ca/Ag) and inverted (ITO/Ca/P3HT:PCBM/MoO_3/Au) cells shows that the inverted cell has an increase of 29% in power conversion efficiency and an increase of 750% in the cell's shelf lifetime when compared with the corresponding forward cell. The enhancement of efficiency for the inverted cell is due to reduced charge recombination, while the improvement of air stability is due to the better protection of the air sensitive low work function metal in the inverted cell.
机译：倒装的聚合物太阳能电池，其以铟锡氧化物（ITO）衬底上的低功函数金属（Ca，Mg，Al和Ag）的超薄层（约1 nm）为阴极，MoO_3 / Au为阳极，并掺混以聚（3-己基噻吩）（P3HT）和1-（3-甲氧基羰基）-丙基-1-苯基-（6,6）C61（PCBM）为活性层进行了研究。常规正向（ITO / MoO_3 / P3HT：PCBM / Ca / Ag）与倒置（ITO / Ca / P3HT：PCBM / MoO_3 / Au）电池之间的比较研究表明，倒置电池的功率转换增加了29％与相应的前向电池相比，电池效率更高，并且电池的保质期增加了750％。倒置电池效率的提高归因于减少的电荷复合，而空气稳定性的改善归因于对倒置电池中对空气敏感的低功函数金属的更好保护。

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