Key points are not available for this paper at this time.
A switchable coating is developed by Jiaxi Cui and co-workers in article number 2000870 for controlling indoor temperature. In the transparent solid state, the coating allows sunlight permeation to induce solar heating to raise the ambient temperature in winter. After being alternated into the porous state, the coating can achieve efficient solar reflection and long-wave infrared emission to induce a sub-ambient temperature drop in summer.
Zhao et al. (Wed,) studied this question.