Figure 2.

Single Ti₃C₂T_x flake is photothermally active. (A) Schematic of the micropipette-based temperature measurement technique to evaluate the photothermal response of isolated Ti₃C₂T_x flakes. (B) Optical image of an isolated Ti₃C₂T_x flake with a glass micropipette adjacent to the flake. Scale bar is 10 μm. (C) Average temperature change as a function of time for an isolated Ti₃C₂T_x flake (shown in B) under 635 nm laser illumination with a pulse width of 1 ms and different incident laser powers. Data are presented as the average of 10 individual pulses. (D) Maximum temperature change as a function of incident laser power measured for two isolated representative Ti₃C₂T_x flakes under 635 nm (red) and 808 nm (black) laser pulses with a pulse width of 1 ms. Data are presented as mean ± SD for 10 individual laser pulses.