SIOM and Others Achieve Low-Threshold Violet-Blue Perovskite Lasing
Start here
The Shanghai Institute of Optics and Fine Mechanics, together with the Hangzhou Institute for Advanced Study, UCAS, and ShanghaiTech University, made progress in low-threshold violet-blue perovskite lasers. The team proposed a molecular-isomerism-driven halide exchange route, using SOCl₂ as the chlorine source to prepare the gain medium and achieve 423 nm violet-blue perovskite lasing. The film amplified spontaneous emission (ASE) threshold was 1.4 μJ·cm⁻², and the random lasing threshold was 2.6 μJ·cm⁻². Without encapsulation and under pumping at 25 times the threshold, the ASE output reached a T95 lifetime of 7×10⁷ pulses and 19.5 hours of continuous operation. The results were published in ACS Nano.
AI-generated from reports · updated 4 hours ago
Report timeline
Follow the reports to see the event from different angles.
- Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesPicksSIOM and Partners Make Progress in Low-Threshold Violet-Blue Perovskite Lasers
SIOM, together with the Hangzhou Institute for Advanced Study of the University of Chinese Academy of Sciences and ShanghaiTech University, proposed a molecular-isomerism-driven halide-exchange route and achieved violet-blue perovskite lasing at 423 nm. The team used SOCl₂ as the chlorine source to prepare the gain medium. The thin film showed amplified spontaneous emission (ASE) threshold of 1.4 μJ·cm⁻² and a random lasing threshold of 2.6 μJ·cm⁻². Unencapsulated and pumped at 25 times the threshold, the ASE output reached a T95 lifetime of 7×10⁷ pulses and 19.5 hours of continuous operation. The results were published in ACS Nano.
Heat trend for this event
Not enough continuous observation data to plot a trend yet.