Shortwave infrared heavy-metal-free quantum dots deliver sensitive and fast sensors for eye-safe LIDAR applications

https://www.eurekalert.org/news-releases/1079323

"Shortwave IR eye-safe, less affected by atmospheric scattering... reliance on expensive/ toxic heavy-metals/ difficult manufacturing, overcome using silver nitrate coated colloidal quantum dot semiconducting silver telluride nanocrystals... measures distances >10 m with decimetre resolution... cost-effective, dark current density <500nA/cm2, external quantum efficiency 1400 nm of 30%, an LDR >150dB, time response 25 ns... LIDAR, space localization/ mapping, adverse weather imaging, environmental monitoring"