Fig. 4: Thermoelectric properties of 1% mixed CsSnI3−xClx perovskite thin films.
From: Enhanced control of self-doping in halide perovskites for improved thermoelectric performance

Temperature dependence of electrical conductivity σ (a), Seebeck coefficient α (b), thermal conductivity κtotal (c) and figure-of-merit, ZT (d). The differently coloured curves represent different degrees oxidation according to the legend in plot (a). Error bars in (b) are too small to be visible, typically representing <2% of the value. e Charge carrier density and Hall mobility as a function of air exposure time. f Maximum figure-of-merit, ZT, as a function of SnCl2 incorporation.