Solar energy, photocatalysis, charge transfer, operando and spatiotemporal imaging technique, surface photovoltage technique  

1. Chen, R., Fan, F. & Li, C. Unraveling Charge-Separation Mechanisms in Photocatalyst Particles by Spatially Resolved Surface Photovoltage Techniques. Angew. Chem. Int. Ed. 61, e202117567 (2022)
2. Chen, R. et al. Giant Defect-Induced Effects on Nanoscale Charge Separation in Semiconductor Photocatalysts. Nano Lett. 19, 426-432 (2019).
3. Chen, R. et al. Charge separation via asymmetric illumination in photocatalytic Cu2O particles. Nat. Energy 3, 655-663 (2018).
4. Chen, R., Fan, F., Dittrich, T. & Li, C. Imaging photogenerated charge carriers on surfaces and interfaces of photocatalysts with surface photovoltage microscopy. Chem. Soc. Rev. 47, 8238-8262 (2018).