Zhao Ning, Zhen Tao, Wu Yizhou, Wei Bin, Liao Yingjie, Liu Yuanyuan
School of Mechanical Engineering and Automation, Shanghai University, Shanghai 200072, China.
Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University, Shanghai 200072, China.
Nanomaterials (Basel). 2023 Apr 7;13(8):1308. doi: 10.3390/nano13081308.
Semitransparent organic solar cells (ST-OSCs) show great promise for building integrated photovoltaic systems. The balance between power conversion efficiency (PCE) and average visible transmittance (AVT) is a key point of ST-OSCs. We developed a novel semitransparent organic solar cell (ST-OSC) with high PCE and AVT for building integrated renewable energy applications. We used photolithography to fabricate Ag grid bottom electrodes with high figures of merit of 292.46. We also used an optimized active layer of PM6 and Y6, achieving a PCE of 10.65% and an AVT of 22.78% for our ST-OSCs. By adding optical coupling layers of CBP and LiF alternately, we further increased the AVT to 27.61% and the PCE to 10.87%. Importantly, the balance of PCE and AVT can be achieved by the integrated optimization of the active and optical coupling layers, which leads to a significant increase in light utilization efficiency (LUE). These results are of great importance for particle applications of ST-OSCs.
半透明有机太阳能电池（ST-OSCs）在构建集成光伏系统方面展现出巨大潜力。功率转换效率（PCE）与平均可见光透过率（AVT）之间的平衡是ST-OSCs的关键要点。我们开发了一种用于建筑集成可再生能源应用的、具有高PCE和AVT的新型半透明有机太阳能电池（ST-OSC）。我们采用光刻技术制备了品质因数高达292.46的银网格底部电极。我们还使用了优化的PM6和Y6活性层，我们的ST-OSCs实现了10.65%的PCE和22.78%的AVT。通过交替添加CBP和LiF的光学耦合层，我们进一步将AVT提高到27.61%，PCE提高到10.87%。重要的是，通过活性层和光学耦合层的集成优化可以实现PCE和AVT的平衡，这导致光利用效率（LUE）显著提高。这些结果对于ST-OSCs的实际应用具有重要意义。
