Figure 6

(a) Device diagram of indoor solar water steam production test system; (b) simulation structure of rGO@HCF; (c) reflection way of captured light inside the wavy fold of rGO@HCF surface; (d) the dependence of water mass change with the irradiation of time for rGO@HCF-based evaporator under one sun; (e) irradiation time dependent evaporation rate of rGO@HCF-based evaporator under one sun.