▎ 摘　　要

Reduced graphene oxide (rGO) sheets are widely used as electron acceptors in energy-conversion processes and optoelectronic devices. Therefore, it is of great significance to research the electron transfer (ET) between dyes and rGO. Herein, steady-state and time-resolved photoluminescence (PL) spectra of Rhodamine B (RhB) in the presence of rGO at different temperatures were measured. At low ratios of RhB to rGO, the emission kinetics reveals that ca. 37.22% of the electrons at excited states of RhB transfer to rGO at room temperature. Also, with the temperature rising, the ET rate slows down while the amount of transferring electrons first increases then decreases. The process of the ET matches well with the Marcus theory of electron-vibration coupling. At high ratios of RhB to rGO, the ET is explained by the model of activation energy. The ET occurs faster at higher temperature. [GRAPHICS] (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim