当前位置: X-MOL 学术Solar RRL › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Fully Vacuum‐Processed Perovskite Solar Cells on Pyramidal Microtextures
Solar RRL ( IF 6.0 ) Pub Date : 2020-10-31 , DOI: 10.1002/solr.202000553
Lidón Gil-Escrig 1 , Marcel Roß 1 , Johannes Sutter 2 , Amran Al-Ashouri 1 , Christiane Becker 2 , Steve Albrecht 1
Affiliation  

Solar cells based on metal halide perovskites have attracted tremendous attention due to the rapid increase in performance of single junctions and tandem solar cells. Recently, highest perovskite/silicon tandem efficiencies are realized with front‐side polished silicon wafers or adapted microstructure of textured silicon solar cells. One way to integrate perovskite top cells on typical micrometer‐sized pyramidal structures, is conformal vacuum‐based perovskite deposition. Herein, fully vacuum‐based perovskite solar cells are developed on top of random pyramidal microtextured glass substrates with a pyramid size up to 9 μm. This method allows improvement of the light management of the textured perovskite solar cell and resembles the typical pyramid topography of silicon solar cells as a step toward monolithic tandem integration. Moreover, to improve the quality of the perovskite on the textured substrates, three different methylammonium lead iodide (MAPbI3) films are tested by adjusting the rate ratio of the precursors. Optimized ratios for textured substrates with higher PbI2 rates enable a transient photoluminescence decay time above 0.75 μs approaching that of planar substrates at around 1.2 μs. Finally, a efficiency over 15% is achieved, which is, to the best of our knowledge, the first reported device on microscopically textured glass by co‐evaporated ion.

中文翻译:

金字塔形微纹理上的完全真空处理的钙钛矿太阳能电池

由于单结和串联太阳能电池性能的迅速提高,基于金属卤化物钙钛矿的太阳能电池引起了极大的关注。最近,通过正面抛光的硅晶片或经过修饰的纹理硅太阳能电池的微结构实现了最高的钙钛矿/硅串联效率。将钙钛矿顶部细胞整合到典型的微米级金字塔结构上的一种方法是基于真空的保形钙钛矿沉积。在此,完全无尘的钙钛矿太阳能电池是在金字塔尺寸最大为9μm的无规金字塔形微纹理玻璃基板上开发的。该方法可以改善带纹理的钙钛矿型太阳能电池的光管理,并且类似于硅太阳能电池的典型金字塔形地形,是迈向整体串联的一步。此外,3)通过调节前体的比率来测试膜。具有较高PbI 2率的纹理化基材的最佳比例可以使0.75μs以上的瞬态光致发光衰减时间接近于约1.2μs的平面基材。最终,达到了15%以上的效率,据我们所知,这是第一个报告的通过共蒸发离子在显微纹理玻璃上使用的设备。
更新日期:2021-01-07
down
wechat
bug