Leaf-Inspired Flexible Thermoelectric Generators with High Temperature Difference Utilization Ratio and Output Power in Ambient Air.

ABSTRACT: The inherently small temperature difference in air environment restricts the applications of thermoelectric generation in the field of Internet of Things and wearable electronics. Here, a leaf-inspired flexible thermoelectric generator (leaf-TEG) that makes maximum use of temperature difference by vertically aligning poly(3,4-ethylenedioxythiophene) polystyrene sulfonate and constantan thin films is demonstrated. Analytical formulae of the performance scales, i.e., temperature difference utilization ratio (φ_th) and maximum output power (P_max), are derived to optimize the leaf-TEG dimensions. In an air duct (substrate: 36 °C, air: 6 °C, air flowing: 1 m s^-1), the 10-leaf-TEG shows a φ_th of 73% and P_max of 0.3

SUBMITTER: Zhou Q 

PROVIDER: S-EPMC8224459 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature