General Screening Rules and Segmented Optimization Strategy for Efficient Thermoelectric Devices Validated by Mg₃(Sb,Bi)₂/Bi_0.5Sb_1.5Te₃‐GeTe Module

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Abstract Segmentation is a widely adopted strategy to enhance the efficiency of medium‐ and high‐temperature thermoelectric devices by capitalizing on distinct properties materials across various temperature ranges. Establishing highly compatible matching relationship crucial for maximizing conversion efficiency. In this study, concepts materials’ compatibility factor relative current density into screening process are emphasized universal adaptability. The effectiveness practicality theoretical model optimal segmented combinations validated through COMSOL finite element simulations experimental results. A power generation device constructed that integrates environmentally friendly n‐type Mg 3 (Sb,Bi) 2 with pairing Bi 0.5 Sb 1.5 Te ‐GeTe. Notably, at difference Δ T = 440 K, achieves maximum 10.4% peak output 0.41 W. These findings provide solid foundation development efficient materials.

Language: Английский

Advances and challenges in inorganic bulk-based flexible thermoelectric devices

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101420 - 101420

Published: Dec. 1, 2024

Language: Английский