Half-Heusler compounds and devices for mid-high temperature thermoelectric applications

Thermoelectric conversion technology is regarded as a highly potential solution for addressing the global energy crisis and advancing thermal management. As a representative of mid-high temperature thermoelectric materials, half-Heusler compounds possess prominent advantages, including exceptionally high power factor, excellent thermal stability, and robust mechanical properties. Over the past decade, significant advancements have been made in the development of high-performance half-Heusler materials and related devices. This article, from both material and device perspectives, summarizes these effective strategies to enhance thermoelectric performance and highlights the recently achieved progress. We also survey critical applications and prospects for further development.