Revealing heterogeneity of electrode surface by in-situ photoluminescence electrochemical microscope
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Yucheng Li , Yihan Qian , Yujing Zhu , Beile Xiang , Xuan Dang , Zhuoying Li , Lunan Zhang , Qin Xu , wei liu and Cheng Ma
First published on 23rd August 2025
Abstract
A photoluminescence-based in-situ electrochemical microscope enables micrometer-scale probing of electrode heterogeneity. Our results revealed a correlation between the potential–negative differential photoluminescence profile and corresponding cyclic voltammogram. We further elucidated the structure–activity relationship linking interfacial heterogeneity to electrocatalytic performance of electrodeposition Cu2O as a proof-of-concept experiment.