65‐8: Transparent Electroluminescent QLEDs with High Brightness Double‐Side‐Emission Fabricated in Atmosphere

Quantum dots (QDs) are promising materials and have been considered for self‐emitting electroluminescent QD light‐emitting‐diodes (QLEDs). In this work, we report a transparent QLED fabricated with middle‐sized QDs, which has a emission peak with the wavelength of 520 nm and the full‐width at half maximum (FWHM) of 17 nm, and the photoluminescence quantum yield of ~ 90%. The electroluminescent QLED device, fabricated in atmosphere, exhibits brightness of 125, 400 cd/m 2 , current efficiency of 34.23 cd/A, external quantum efficiency of 8.7 %, and transmittance of 70%.