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  • Ni, Zhenyi; Xu, Shuang; Huang, Jinsong

    Science (American Association for the Advancement of Science), 02/2021, Letnik: 371, Številka: 6532
    Journal Article

    Ravishankar claimed that drive-level capacitance profiling (DLCP) cannot resolve trap density in perovskites of given thickness. We point out that the trap densities derived by DLCP are from the differential capacitance at different frequencies; thus, the background charges caused by diffusion and geometry capacitance have been subtracted. Even for the nondifferential doping analysis, the contribution from diffusion capacitance is negligible and that from geometry capacitance is excluded.