High-performance quantum dot photosensor needs no external power source

https://phys.org/news/2023-12-high-performance-quantum-dot-photosensor-external.html

"stably measure light signals without external power, (photovoltaic effect)... improved electrical properties by controlling dot size (ultra-thin) and composition (eco-friendly copper-indium-selenide)... organic-inorganic hybrid charge transfer layer, and photosensor with record performance even with quantum dot absorption layer 40 nm... wearable pulse sensor combines photosensor produced on polymer-based flexible substrate with light source, stable even in radius of curvature 0.5 mm... also: infrared cameras, lidar"