Fig. 3: Photothermal conversion of the RMFs and T-RMFs.

Temperature increase profiles of the RMFs under 0.33 W, 0.50 W, and 1.0 W of NIR light (A). Temperature changes of the RMFs (B) and T-RMFs (C) during five on/off cycles. Thermal images of the control group (D), RMFs (E) and T-RMFs (F) under 0.33 W of NIR light.