The Second Coming of CIGS

Jim Paull for Zondits More money has been pumped into copper indium galium di-selenide (CIGS) solar cells than any other photovoltaic (PV) technology. Less than a decade ago, CIGS was thought to be the heir to the future of PV: inexpensive materials only nanometers thick, deposited on glass or stainless steel foil. The “roll-to-roll” notion … Read more