Back Cover Image, Volume 7, Number 1, January 2025

Back cover image: 3D porous thermoelectric (TE) materials have emerged as a potential option for improving the output power of thermoelectric generators (TEGs). However, their brittle fracture and low mechanical strength of 3D porous TE materials have limited their application to TEGs. In article number CEY2.650, a novel hybrid TE material comprising BiSbTe (BST) nanoparticles embedded in carbon nanotube (CNT) foam is designed. They generate junctions by clustering with CNTs, creating a conductive network that enhances charge transport and mechanical strengthens the CNT foam. These findings successfully demonstrate that a CNT/BST foam with high TE and mechanical performance holds significant promise for flexible and durable TE generators.