Sensing of the charge transfer process in ZnO/MAPbI3 heterojunctions of perovskite solar cells (PSCs) by surface-enhanced Raman scattering

SERS works as a nondestructive tool to rapidly sense the microscopic charge transfer process in ZnO/MAPbI 3 heterojunctions, which suggests the high compatibility between SERS and PSCs and provides new research support to optimize the design of PSCs.