(Thanks, b. :)

Reader b. sends us:

=====

22 Mar 2019 | 19:30 GMT

Graphene Device Sops Up Sunlight, Heats to 160 Degrees Celsius in Seconds

A new class of ultrathin light absorbent material could harvest solar energy, boil water, and work as an infrared detector

by John Boyd

Researchers from three Australian universities have collaborated to develop a light-absorbing device using a new graphene-based film that can absorb unpolarized incident light striking it over a wide range of angles up to 60 degrees.

The 90-nm ultra-thin metamaterial can rapidly heat up to as high as 1600C under sunlight in an open environment. The researchers believe the characteristics of this new class of optical material make it suitable for a wide variety of uses, including desalination of seawater, color displays, photodetectors, and optical components for communication devices.

Full article:

https://spectrum.ieee.org/nanoclast/semiconductors/optoelectronics/new-graphene-metamaterial-device-heats-to-160c-under-sunlight-in-seconds

***************************************************************