Currently, photovoltaic research area is short of solution-processed transparent electrodes, which can replace the widely used vacuum-deposited indium tin oxide (ITO). Here, by employing a two-dimensional metal-organic framework (2D-MOF) Cu-BHT (BHT = benzenehexathiol), a solution-processed transparent electrode with high conductivity over 2500 Scm⁻¹ and high transmittance of 82% is developed. Three classic photovoltaic solar cells (perovskite solar cells, quantum dots solar cells and organic solar cells) are fabricated on both glass and flexible polyimide (PI) substrates with this Cu-BHT electrode, replacing conventionally used ITO. The performances of all the devices are comparable to their corresponding ones with ITO electrode, indicating the great potential of the Cu-BHT electrode in future low-cost and flexible optoelectronics.

当前，光伏研究领域缺少溶液处理的透明电极，可以代替广泛使用的真空沉积铟锡氧化物（ITO）。在这里，通过使用二维金属有机骨架（2D-MOF）Cu-BHT（BHT =苯六硫醇），溶液处理的透明电极具有2500 Scm ^-1以上的高电导率透射率高达82％。使用此Cu-BHT电极在玻璃和柔性聚酰亚胺（PI）基板上制造了三种经典的光伏太阳能电池（钙钛矿型太阳能电池，量子点太阳能电池和有机太阳能电池），代替了传统的ITO。所有器件的性能都可与相应的ITO电极相媲美，这表明Cu-BHT电极在未来的低成本和柔性光电中具有巨大的潜力。