Perovskite Optoelectronic Logic Gates Activate Sensor Platforms . SEOUL, South Korea, May 16, 2022 — Researchers at the Korea Institute of Science and Technology (KIST) and the Gwangju Institute of Science and Technology (GIST) designed an optoelectronic logic gate (OELG) made from organic-inorganic perovskite photodiodes. The OELG architecture will help computers quickly calculate and process large amounts of information, the researchers said. A logic gate platform th...