Towards a high thermoelectric performance in CdO ceramics by introducing multiscale scattering centers via ZnCO3 doping
Year: 2018
Type: article
Abstract: Exploring high performance n-type oxide thermoelectric materials is crucial for developing all oxide thermoelectric generators working in air at high temperatures. In this work, CdO-based thermoelectric ceramics with high ZT were obtained by introducing multiscale phonon scattering centers (point defects, grain boundaries, ZnO precipitations and micro-sized pores) while maintaining moderate power factor via ZnCO 3 doping. An optimal ZT value of 0.52 is obtained at 1000 K in the 1% ZnCO 3 -doped sample, the highest value reported so far for n-type thermoelectric oxides at the same temperature range.
Source: Materials Research Express
Institution: Hebei University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2792429573