Solvent-Dependent Thermoelectric Performance of PC70BM
Year: 2021
Type: article
Abstract: The investigation of the solvent-dependent thermoelectric properties of [6,6]-Phenyl-C71 butyric acid methyl ester, commonly known as PC70BM, is reported. This work shows how using different solvents leads to obtain different values of thermoelectric power factor and figure of merit for PC70BM. Samples were prepared from solutions of PC70BM in five different solvents: chlorobenzene (CB), 1,2-dichlorobenzene (DCB), 1,2,4-trichlorobenzene (TCB), chloroform (CF), and toluene (TO), and their thermoelectric properties were determined by measuring electrical conductivity, Seebeck coefficient, and mobility. By using polar solvents with high boiling points, such as TCB, the value of mobility increased by a factor of 23, electrical conductivity improved by a factor of 13, and enhancement in the negative Seebeck coefficient value from ‒405 to –460 μV/K was observed.
Source: Physics of the Solid State
Authors: Mina Rastegaralam, Mitra Rastegaralam
Institution: Seoul National University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4212806008