Semiconductor 2D logic circuits' electronic and optical properties can be repeatedly programmed, erased, and reconfigured using light

https://www.eurekalert.org/news-releases/1141465

"combining semiconductor sheet/ light-responsive chromic molecules enables exposure to different light wavelengths to dynamically alter material's molecular structure/ electrical conductivity... enables gradual, reversible tuning post-fabrication... prototype 1-inch-square sheet containing functional arrays... smart, reconfigurable electronics, adaptive sensors, and energy-efficient optoelectronic computing hardware that move beyond the physical miniaturization limits of silicon"