Fig. 3: Analysis of electrical/thermal transport properties of 3D ZnO with varying grain sizes.
From: High figure-of-merit for ZnO nanostructures by interfacing lowly-oxidized graphene quantum dots
Temperature-dependent a Seebeck coefficient, b electrical conductivity, and c power factor of 3D ZnO with varying grain sizes. d Optical microscopy (OM) and digital (inset) images of 3D ZnO film transferred onto a microfabricated thermoelectric measurement platform (MTMP). e Comparison of thermal conductivities of 3D ZnO samples measured on MTMP as a function of temperature. Filled circles are measured values, and open circles indicate estimated values obtained using a modified Debye-Callaway model. f Comparison of zT values of 3D ZnO samples. Error bars shown in Fig. 3 represent the SD.
