Healthy and stable lighting via single-component white perovskite nanoplates

Single-component healthy white light was achieved via Mn2+ post-doping into blue perovskite nanoplates (NPLs). The white light consists of two complementary colors, sky-blue (482 nm) and orange-red (610 nm), without harmful deep blue light (400-450 nm), which realizes the Commission Internationale de I ' Eclairage (CIE) coordinates of (0.33, 0.33) (standard pure white light) and a color temperature of 6000 K. Benefitting from the lattice shrinking via Mn2+ doping, the stability of white NPLs toward long-term storage, UV light, heat, and polar solvents was greatly improved. Finally, a healthy and stable white light-emitting diode (WLED) was fabricated via down-conversion of a UV light LED with our white perovskite NPLs, and the WLED worked continuously for 240 minutes with a color drift of only (+/- 0.006, +/- 0.004) and with a half lifetime (T-50) of 212 minutes.

Automated summary

Single-component healthy white light was achieved by post-doping Mn2+ into blue perovskite nanoplates, resulting in improved stability and quality for white light-emitting diodes (WLEDs).