High Seebeck Coefficient from Screen-Printed Colloidal PbSe Nanocrystals Thin Film.

ABSTRACT: Thin-film thermoelectrics (TEs) with a thickness of a few microns present an attractive opportunity to power the internet of things (IoT). Here, we propose screen printing as an industry-relevant technology to fabricate TE thin films from colloidal PbSe quantum dots (QDs). Monodisperse 13 nm-sized PbSe QDs with spherical morphology were synthesized through a straightforward heating-up method. The cubic-phase PbSe QDs with homogeneous chemical composition allowed the formulation of a novel ink to fabricate 2 μm-thick thin films through robust screen printing followed by rapid annealing. A maximum Seebeck coefficient of 561 μV K^-1 was obtained at 143 °C and the highest electrical conductivity of 123 S m^-1 was reached at 197 °C. Power factor calculations resulted in a ma

SUBMITTER: Sousa V 

PROVIDER: S-EPMC9781735 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature