Stress-strain regulation of thermal transport properties of solid materials

The regulation of heat conduction processes in solid-state materials involves the evolution of electron and phonon structures in condensed matter under different physical conditions. Understanding the microscopic mechanisms from fundamental physical principles has become a key scientific issue in constructing novel functional devices such as high-performance thermoelectric materials, field-effect transistors, and lithium-ion batteries. Stress-strain has long been recognized as a crucial thermodynamic parameter for regulating material properties, serving as one of the primary means to modulate thermal conductivity. Investigating the stress-strain modulation mechanisms on thermal transport properties of various materials not only contributes to understanding electron and phonon transport mechanisms under extreme conditions, but also holds significant implications for practical applications in thermoelectric materials, semiconductor devices, and lithium-ion batteries. This article systematically reviews recent research progress in stress-strain regulation of thermal conductivity in solid-state materials. From perspectives of physical mechanisms, performance modulation, and practical applications, it primarily examines the physical principles and implementations of stress-strain regulation in thermal conductivity management for thermoelectric materials, semiconductor materials, lithium battery materials, and flexible materials.