Fig. 2: Thermal response and stability of thin-film samples.
From: N-type organic thermoelectrics: demonstration of ZT > 0.3

a Plots of variable temperature ellipsometry scans for pristine PTEG-1, PTEG-2, and F2A, and doped PTEG-2 films; b evolution of normalized electrical conductivity for various doped fullerene derivatives maintained at a temperature of 150 °C.