Fig. 9: Effect of charge carrier densities and excitation energy on HC cooling dynamics. | Light: Science & Applications

Fig. 9: Effect of charge carrier densities and excitation energy on HC cooling dynamics.

From: There is plenty of room at the top: generation of hot charge carriers and their applications in perovskite and other semiconductor-based optoelectronic devices

Fig. 9

a The temperature of HC versus the delay time for MAPbBr3 NCs and bulk film. b, c represent the influence of various excitation densities on HC temperature on perovskite film, where higher initial carrier density corresponds to delay in cooling time. d Power loss in CsPbBr3 NCs as a function of inverse temperature, where the red line and blue line correspond to HC temperature higher than lattice LO phonons and the equilibrium established between both entities, respectively. e Slow cooling of organic lead halide perovskite in which the influence of various pump energies on HC cooling is observed. Higher energy corresponds to slow cooling. The figures are taken with permission from (a) ref. 46, (c) ref. 50 and (d, e) ref. 47

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