Graphene Solar Thermal Film Could Be a New Way to Harvest Renewable Energy

Post Syndicated from John Boyd original https://spectrum.ieee.org/energywise/semiconductors/materials/graphene-solar-heating-film-potential-new-renewable-energy-source

Researchers at the Center for Translational Atomaterials (CTAM) at Swinburne University of Technology in Melbourne, Australia, have developed a new graphene-based film that can absorb sunlight with an efficiency of over 90 percent, while simultaneously eliminating most IR thermal emission loss—the first time such a feat has been reported.

The result is an efficient solar heating metamaterial that can heat up rapidly to 83 degrees C (181 degrees F) in an open environment with minimal heat loss. Proposed applications for the film include thermal energy harvesting and storage, thermoelectricity generation, and seawater desalination.