The challenges in transparent photovoltaic (TPV) fields are still that the device transparency and efficiency are difficult to be balanced to meet the requirements of practical applications. In this study, we systematically investigated the interrelationship between photovoltaic film properties, optical transmission, and photovoltaic performances in the near-infrared harvesting organic TPVs. The results indicate that the photovoltaic film thickness determines the TPV’s transparency and meanwhile affects the device efficiency; by contrast, the donor–acceptor ratio only affects device efficiency and has little effect on transparency. By controlling the film thickness and donor–acceptor ratio, the average visible transmission (AVT) of TPVs can be precisely managed in the range of 40% - 85%, and the device efficiency can achieve as high as 4.06% and 2.38% while the AVT exceeds 70% and 80%, respectively. Importantly, the large area (~10 cm²) TPV modules and ultra-flexible devices were then successfully prepared based on the systematical study.

透明光伏（TPV）领域面临的挑战仍然是器件的透明度和效率难以平衡以满足实际应用的要求。在本研究中，我们系统地研究了近红外捕获有机 TPV 中光伏薄膜特性、光传输和光伏性能之间的相互关系。结果表明，光伏薄膜的厚度决定了TPV的透明度，同时也影响了器件的效率；相比之下，施主-受主比只影响器件效率，对透明度几乎没有影响。通过控制薄膜厚度和施主-受主比，TPVs的平均可见光透射率（AVT）可以精确控制在40%~85%的范围内，器件效率可以达到4.06%和2%。38%，而 AVT 分别超过 70% 和 80%。重要的是，大面积（~10 cm²）在系统研究的基础上，成功制备出TPV组件和超柔性器件。