Since perovskites emerged as exceptional light-harvesting materials, remarkable progress has been achieved in enhancing solar cell efficiencies. Building on this foundation, the manipulation of internal optical properties within perovskite architectures presents a promising route for further efficiency improvements. Herein, we demonstrate that embedding titanium nanocubes (TiCs)—which are relatively easy to fabricate—into perovskite thin films yields absorption enhancement comparable to that of titanium nanotriangles (TiTs), the latter being challenging to stabilize in ordered arrangements. This finding provides valuable guidance for metal-doping strategies in perovskite photovoltaics, offering a pragmatic alternative that balances performance enhancement with fabrication feasibility.
Peng et al. (Thu,) studied this question.