Don't have Telegram yet? Try it now!
https://www.innovationtoronto.com/2018/11/inexpensive-perovskite-leds-now-rival-the-efficiency-if-not-the-stability-yet-of-much-more-expensive-organic-leds/
Inexpensive perovskite LEDs now rival the efficiency if not the stability - yet - of much more expensive organic LEDs