To enhance carrier transport, the internal charge transfer resistance of organic–inorganic metal halide perovskite solar cells (PVSCs) was reduced through the formation of well-distributed nanogold-graphene–based conductive networks in the matrix of the active layer. In this study, a reduced graphene oxide-cysteine/nanogold (rGO-CysAu) hybrid material was prepared and incorporated into PVSCs. Nanogold particles were modified with the amino acid cysteine and successfully deposited onto the surface of graphene oxide. To prepare inverted PVSCs, rGO-CysAu with a highly uniform distribution of gold nanoparticles on the rGO surface was added to the perovskite precursor solution. The incorporation of rGO-CysAu into PVSCs resulted in a 12% increase in power conversion efficiency, improving perovskite charge transport efficiency and crystallization. Consequently, PVSCs with rGO-CysAu had improved average efficiency of 20.59% compared to 18.32% for control cells.

为了增强载流子传输，通过在活性层基质中形成分布良好的纳米金-石墨烯基导电网络，降低了有机-无机金属卤化物钙钛矿太阳能电池（PVSC）的内部电荷转移阻力。在这项研究中，还原的氧化石墨烯-半胱氨酸/纳米金（rGO-CysAu）杂化材料被制备并结合到PVSCs中。纳米金颗粒用氨基酸半胱氨酸修饰并成功沉积到氧化石墨烯的表面。为了制备倒置的PVSC，将在rGO表面上具有金纳米颗粒高度均匀分布的rGO-CysAu添加到钙钛矿前体溶液中。将rGO-CysAu掺入PVSC中可使功率转换效率提高12％，从而提高了钙钛矿电荷传输效率和结晶度。