Novel Thermal Diffusion Temperature Engineering Leading to High Thermoelectric Performance in Bi₂ Te₃ -Based Flexible Thin-Films.

ABSTRACT: Flexible Bi₂ Te₃ -based thermoelectric devices can function as power generators for powering wearable electronics or chip-sensors for internet-of-things. However, the unsatisfied performance of n-type Bi₂ Te₃ flexible thin films significantly limits their wide application. In this study, a novel thermal diffusion method is employed to fabricate n-type Te-embedded Bi₂ Te₃ flexible thin films on flexible polyimide substrates, where Te embeddings can be achieved by tuning the thermal diffusion temperature and correspondingly result in an energy filtering effect at the Bi₂ Te₃ /Te interfaces. The energy filtering effect can lead to a high Seebeck coefficient ≈160 µV K^-1 as well as high carrier mo

SUBMITTER: Ao DW 

PROVIDER: S-EPMC8844477 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature