315% higher IR emissivity
Cu²⁺-Fe³⁺ co-doping simultaneously enhances impurity level absorption, free carrier absorption, and lattice vibration absorption, enabling high emissivity in both near- and far-infrared bands, with a simple solid-state process that is non-toxic and low-cost.
Ke, Wang · Cuijiao, Ding · Wang, Qinghu · Wei, Luo · Huang, Liang · Xu, Yibiao · Liang, Xiong · Sang, Shaobai · Pan, Liping · Yawei, Li · Haijun, Zhang · Jiangtao, Li
Journal of Alloys and Compounds 2024