Performance Analysis of FTO/ZnO/RbGeI3/RbGeBr3/NiO Perovskite Solar Cell Achieving 27.98% PCE

Engineering notes

Engineering notes will be added by the Power for Solar editorial team.

Chinese explanation / 中文解读

中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。

Original abstract

A high power conversion efficiency (PCE) is the current demand for development of future photovoltaic technologies. Lead based perovskite are good at achieving high PCE at the cost of toxicity of lead. This work proposes design, simulation and evaluation of lead-free novel perovskite solar cell architecture consisting of layers sequenced as FTO/ZnO/RbGeI 3 /RbGeBr 3 /NiO. This works achieves an optimal value of open-circuit voltage (V oc ), short-circuit current density (J sc ), Fill factor (FF) and power conversion efficiency (PCE) of 0.97 V, 34.1 mA/cm 2 , 84.3%,27.98% respectively. The concept of dual absorber layer is proposed here, which is the mixed-halide (RbGeI 3 and RbGeBr 3 ) absorbers that improves charge transport, suppresses defect-assisted recombination and stabilizes the perovskite crystal structure. From the simulation results, it is observed that this optimized hetero-junction alignment and defect density reduction in the absorber contributes significantly to improve photovoltaic parameters performance. This solar cell study highlights the potential of germanium-based dual absorber perovskite materials for higher efficiency and stable solar cell applications.

Links and sources

Comments