▎ 摘 要
NOVELTY - Multilayer body comprises water-permeable base body with carbon material layer comprises graphite, graphene, graphene oxide and chemically functional group-modified graphene and carbon nanotubes. USE - Multilayer body used as light absorber (claimed). ADVANTAGE - The multilayer body is capable of delivering water to carbonaceous material layer. It has high water vapor generation efficiency and high energy utilization rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of multi-layer body comprises obtaining carbon material dispersion; coating or depositing dispersion of carbon material on substrate.