Copper indium gallium selenide

Picture 1: A comparison of the reflection from a cover glass on a crystalline Silicon cell with and without the multilayer AR coating.
Scientists come up with method of reducing solar panel glare
via OSU
Energy breakthrough uses sun to create solar energy materials
Antifreeze, cheap materials may lead to low-cost solar energy
Opening the Door to More Widespread Solar Energy Devices
Dow Solar rolls out Solar Shingles in California and Texas