"Medium-ring" strategy enables high-performance narrowband pure-blue multi-resonance emitters: boost provided by a unique perpendicular geometry.

Published in: Chemical communications (Cambridge, England) (2023)

The introduction of a heptagonal tribenzo[ b , d , f ]azepine (TBA) donor onto BCz-BN enabled the development of a pure-blue narrowband emitter, TBA-BCz-BN, and induced a significant blue shift of emission from 483 nm to 468 nm and a decrease in the singlet-triplet energy gap from 0.17 eV to 0.14 eV. The corresponding TBA-BCz-BN-based OLED exhibited a high external quantum efficiency of 30.8%.

Keyphrases

light emitting
energy transfer
high glucose
diabetic rats
photodynamic therapy
quantum dots
molecular dynamics
endothelial cells