Ebner David, Bauch Martin, Dimopoulos Theodoros
Opt Express. 2017 Apr 17;25(8):A240-A252. doi: 10.1364/OE.25.00A240.
Transparent electrodes based on an ultrathin Cu layer, embedded between two dielectrics, are optimized by simulations and experiments. Different dielectrics are screened in transfer matrix simulations for maximizing the broad-band transmittance. Based on this, sputtered electrodes were developed with the Cu embedded between TiO-coated glass or PET substrate and an Al-doped ZnO (AZO) top layer. It is found that, for ultrathin Cu layers, increased sputter power fosters island coalescence, leading to superior optical and electrical performance compared to previously reported Cu-based electrodes. Simulations showed that the electrode design optimized with air as ambient medium has to be adapted in the case of electrode implementation in a hybrid perovskite solar cell of inverted architecture.
基于嵌入在两种电介质之间的超薄铜层的透明电极，通过模拟和实验进行了优化。在转移矩阵模拟中筛选不同的电介质，以最大化宽带透射率。在此基础上，开发了溅射电极，铜嵌入在涂有二氧化钛的玻璃或聚对苯二甲酸乙二酯（PET）基板与掺铝氧化锌（AZO）顶层之间。研究发现，对于超薄铜层，增加溅射功率有助于岛状结构的合并，与先前报道的铜基电极相比，可带来卓越的光学和电学性能。模拟表明，在倒置结构的混合钙钛矿太阳能电池中实施电极时，以空气作为环境介质优化的电极设计必须进行调整。
