September 10, 2025Advanced ScienceOpen Access

High Conversion Efficiency in Intrinsic High Power‐Density Mg₂Sn‐GeTe Thermoelectric Generator

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A remarkable conversion efficiency of 9% was achieved at a temperature gradient of 418 K.
The Mg2Sn-GeTe TEGs demonstrate a thermoelectric figure of merit of 1.4, marking a significant advance.
The strategy involves a balance in carrier and phonon transport, enhanced by aliovalent Sb and Bi solid solutions.
These findings emphasize the potential of high performance TEGs for efficient off-grid energy supply.

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Research reveals a 9% conversion efficiency in high power density TEGs using Mg2Sn-GeTe, suggesting progress in sustainable energy solutions.

Wu et al. (2025) studied this question.

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Research reveals a 9% conversion efficiency in high power density TEGs using Mg2Sn-GeTe, suggesting progress in sustainable energy solutions.