Ronggui Yang, a professor and S.P. Chip and Lori Johnson Faculty Fellow in the Department of Mechanical Engineering at the University of Colorado at Boulder, who was not involved in the study, noted that significant challenges exist in obtaining wide - angle high solar absorptance materials with low
thermal emittance.
Vanadium dioxide as a natural disordered metamaterial: perfect thermal emission and large broadband negative differential
thermal emittance.
Not exact matches
One very little understood property of matter (atoms, molecules, etc) is that their real life
emittance (thus absorption) changes as a function of their internal temperature and outside temperature (
thermal radiation field).