Jhou Jia-Ci, Gaurav Ashish, Chang Chung-Han, Lin Ching-Fuh
Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan.
Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan.
Nanomaterials (Basel). 2022 May 5;12(9):1569. doi: 10.3390/nano12091569.
Halide perovskite based solar cells (PSC's) have shown tremendous potential based on its facile fabrication technique, and the low cost of perovskite thin film formation with efficiency passing through an unmatched growth in recent years. High quality film along with morphology and crystallinity of the perovskite layer influences the efficiency and other properties of the perovskite solar cell (PSC). Furthermore, semitransparent perovskite solar cells (ST-PSC) are an area of attraction due to its application in tandem solar cells, although various factors like suitable transparent rear electrodes and optimized technique limit the power conversion efficiency (PCE). In this article, we fabricated perovskite film using a technique termed Double-sided sandwich evaporation technique (DS-SET) resulting in high quality perovskite film (MAPbI and MAPbICl). Using this fabrication approach as compared to the traditional spin-coating method, we reported an enhanced photovoltaic performance of the PSC with a better surface morphology and homogeneity. The best parameter via DS-SET was found to be SET 30 min, which demonstrated a PCE (%) up to 14.8% for MAPbI and 16.25% for MAPbICl, respectively. Addressing the tandem solar cell, incorporating thin Ag as a transparent electrode with a thickness of 20 nm onto the PSC's as the top cell and further combining with the Si solar cell results in the four terminal (4T) tandem solar cell exhibiting a PCE (%) of 24.43%.
基于卤化物钙钛矿的太阳能电池（PSC）凭借其简便的制造技术展现出了巨大潜力，且钙钛矿薄膜形成成本低廉，近年来其效率实现了无与伦比的增长。高质量的薄膜以及钙钛矿层的形态和结晶度会影响钙钛矿太阳能电池（PSC）的效率和其他性能。此外，半透明钙钛矿太阳能电池（ST-PSC）因其在串联太阳能电池中的应用而备受关注，尽管诸如合适的透明背电极和优化技术等各种因素限制了其功率转换效率（PCE）。在本文中，我们使用一种称为双面三明治蒸发技术（DS-SET）的方法制备了钙钛矿薄膜，得到了高质量的钙钛矿薄膜（MAPbI和MAPbICl）。与传统的旋涂法相比，采用这种制备方法，我们报道了PSC具有增强的光伏性能，其表面形态和均匀性更好。通过DS-SET发现的最佳参数是SET 30分钟，这表明MAPbI的PCE（%）高达14.8%，MAPbICl的PCE（%）高达16.25%。针对串联太阳能电池，在PSC作为顶部电池上并入厚度为20 nm的薄银作为透明电极，并进一步与硅太阳能电池结合，得到了四端（4T）串联太阳能电池，其PCE（%）为24.43%。
