Scientists discover semi-metallization and novel photoelectric behavior in lead iodide under high pressure

https://phys.org/news/2023-05-scientists-semi-metallization-photoelectric-behavior-iodide.html

"PbI2 decrease lifetime ultrafast spectroscopy under pressure... response band extended from visible light to telecom wavelength 1,550 nm... systematically investigate the behavior of PbI2 under high pressure, and they resolved a long-standing controversy about its high-pressure phase and identify inconsistencies between crystalline and electronic transitions... pressure-induced semi-metallization offers a new strategy for designing a high-performance photodetector with broadband response"