Flash photonic heating quickly synthesizes high-quality thin films while leaving underlying heat-sensitive substrates undamaged

https://www.eurekalert.org/news-releases/1140351

"thin film bismuth oxide film coating exposed to ms-long light flashes heats to nearly 2K°C, controlling semiconductor materials' atomic structure while keeping supporting glass substrate <100°C... material trapped in highly active crystal structure (beta phase) absorbs broader spectrum light/ generates up to 50X more photocurrent than non-flashed form... broad potential for delicate substrates- glass/ flexibles (plastic/ paper)- used with semiconductors in: electronics, solar energy conversion, photocatalysis"