Solar Cells

Solar power on community housing in Australia. Photo courtesy of CORENA.

Bifacial Perovskite Solar Cells Point to Higher Efficiency

NREL Researchers Calculate Boost From Reflected Light Hitting Back of Device A bifacial perovskite solar cell, which allows sunlight to reach both sides of the device, holds the potential to produce higher energy yields at lower overall costs, according to scientists at the U.S. Department of Energy’s National Renewable Energy … [continued]

First Solar Buys Evolar

First Solar has been around for, well, what seems like forever. It was founded in 1999, well before the solar boom took off and solar power became big business. Back then, there were all kinds of claims about how little solar power could ever contribute to the electricity supply. It … [continued]

CdTe solar cells are the second-most common photovoltaic technology after silicon solar cells. In 2022, they represented about one-third of the U.S. utility-scale solar market. CdTe solar cells rely on a thin film of material to absorb light and convert it into electricity. Photo by Dennis Schroeder, NREL

In Ultrathin Layers, NREL Researchers Find A Path To Better Materials

Unexpected Crystalline Structure Explains Mechanism of Long-Used Solar Cell Treatment and Hints That Further Materials Discoveries Await For more than three decades, photovoltaic researchers have known that the addition of a single chemical — cadmium chloride — creates better-performing cadmium telluride (CdTe) solar cells. But they have not understood exactly … [continued]