(A) Time-resolved transient absorption spectra of ITO/CuI electrodes in 0.1 M Bu4NPF6/DCM electrolyte after 387 nm laser pulse excitation (4 μJ cm–2) at an applied potential of +0.2 V vs Ag/AgCl. (B) Bleach recovery profiles monitored at 412 nm at applied potentials from −0.1 to +0.6 V vs Ag/AgCl. (C) Potential dependence of the determined lifetimes. The recovery profiles in (B) were fitted with a monoexponential decay. See article [2] for more details.

[1] R. A. Scheidt, G. F. Samu, C. Janáky, P. V. Kamat - Modulation of Charge Recombination in CsPbBr3 Perovskite Films with Electrochemical Bias - J. Am. Chem. Soc. 2018, 140, 86-89 DOI: 10.1021/jacs.7b10958
[2] G. F. Samu, R. A. Scheidt, Á. Balog, C. Janáky, P. V. Kamat - Tuning the Excited-State Dynamics of CuI Films with Electrochemical Bias - ACS Energy Lett.2019, 4, 702-708 DOI: 10.1021/acsenergylett.9b00182