采用Al或Mg掺杂ZnO作为电子传输层层,制备了基于P3HT∶PCBM的聚合物太阳能电池(PSCs)。采用原子力显微镜和紫外-可见分光光度计研究了Al、Mg浓度对传输层表面形貌和光学性能的影响。结果表明:Al或Mg掺杂浓度对器件的性能有一定的影响。掺杂质量为3%的Al掺杂ZnO层太阳能电池光电转化效率最高为1.96%。通过Al或Mg掺杂ZnO层作为电子传输层太阳能电池性能的研究,结果表明器件性能与活性层与电子传输层界面材料粗糙度有关。
Polymer solar cells (PSCs) based on P3HT∶PCBM bulk heterojunction was fabricated using aluminum (Al) or magnesium (Mg) doped ZnO as cathode buffer layer.The influences of Al or Mg concentration on the surface morphology of buffer layer and optical properties were investigated by atomic force microscopy and UV/visible spectrophotometer.The results indicated that Al or Mg concentration had a certain influence on characteristics of the device.The effects of Al or Mg concentration in cathode buffer layer were also observed in the J-V(current density-voltage) characteristics of the PSCs.The solar cell using Al doped ZnO layer with doping concentration of 3wt% shown the best J-V characteristics with the highest power conversion efficiency.These characteristics seem to be correlated with the properties of Al or Mg doped ZnO layer and its interface with the active layer.
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基金资助
国家自然科学基金(61540016);黔西南州科技局项目(2019-2-55);贵州省大学生创新创业项目(201710666037);贵州省教育厅基金(黔教合KY[2014]318);贵州省科技厅基金(黔科合字LH[2014]7410)
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