Chinese scientists build 27.3%-efficient inverted perovskite solar cell based on dual-molecule interface

A group of researchers led by China's Soochow University has engineered a dual-molecule interface layer for inverted perovskite solar cells by coassembling two carbazole-based molecules to control interfacial chemistry and structure. This design reportedly locks molecular ordering, reduces defects and stress, and enables more efficient charge extraction for highly efficient and stable solar cells. Inverted perovskite cells have a device structure known as "p-i-n", in which hole-selective contact p is at the bottom of intrinsic perovskite layer i with electron transport layer n at the top. Conventional ...

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