Scalable and versatile CHESS thin-film thermoelectric material nearly doubles refrigeration efficiency/ capacity at room temperature

https://www.sciencedaily.com/releases/2025/09/250919085242.htm

"Controlled Hierarchically Engineered Superlattice Structures: easily manufacturable solid-state heat-pump...  scalable semiconductor chip fabrication compatibility, no toxic refrigerants... uses 0.003 cubic cm materials... metal-organic chemical vapor deposition fabrication... small-scale refrigeration, large-scale HVAC, space exploration, computers, body heat differences for tactile systems/ prosthetics/ human-machine interfaces"