Vijayaraghavan S N, Wall Jacob, Xiang Wenjun, Khawaja Kausar, Li Lin, Zhu Kai, Berry Joseph J, Yan Feng
Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States.
National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
ACS Appl Mater Interfaces. 2023 Mar 29;15(12):15290-15297. doi: 10.1021/acsami.2c20436. Epub 2023 Mar 20.
Halide perovskite solar cells (PSCs) represent a low-cost and high-efficiency solar technology. However, most of the highly efficient PSCs need a noble electrode, such as Au, through thermal evaporation. It is reported that a sputtered Au electrode on a PSC could damage the organic hole transport layer (HTL) and the perovskite layer. Here, we report a simple, yet effective sputtered gold nanoparticle decorated carbon electrode to fabricate efficient and stable planar PSCs. The sputtered Au layer on the doctor-bladed coated carbon electrode can be directly applied to the perovskite semicells by mechanical stacking. By optimizing the gold thickness, a power conversion efficiency (PCE) of 16.87% was obtained for the composite electrode-based PSC, while the reference device recorded a PCE of 12.38%. The composite electrode-based device demonstrated 96% performance retention after being stored under humid conditions (50-60%) without encapsulation for ∼100 h. This demonstrates a promising pathway toward the commercialization of large-scale manufacturable sputtered electrodes for the PSC solar module.
卤化物钙钛矿太阳能电池（PSC）是一种低成本、高效率的太阳能技术。然而，大多数高效的PSC需要通过热蒸发制备诸如金之类的贵金属电极。据报道，PSC上溅射的金电极可能会损坏有机空穴传输层（HTL）和钙钛矿层。在此，我们报道了一种简单而有效的溅射金纳米颗粒修饰碳电极，用于制备高效且稳定的平面PSC。刮刀涂布碳电极上的溅射金层可通过机械堆叠直接应用于钙钛矿半电池。通过优化金的厚度，基于复合电极的PSC的功率转换效率（PCE）达到了16.87%，而参考器件的PCE为12.38%。基于复合电极的器件在未封装的潮湿条件（50 - 60%）下储存约100小时后，性能保持率为96%。这为PSC太阳能模块大规模可制造溅射电极的商业化展示了一条有前景的途径。
