Strategic tuning of excited-state properties of electroluminescent materials with enhanced hot exciton mixing.

ABSTRACT: Deep blue emitters with excellent stability, high quantum yield and multifunctionality are the major issues for full-color displays. In line with this, new multifunctional, thermally stable blue emitters viz., N-(4-(10-(1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-phenanthro[9,10-d]imidazol-2-yl)anthracen-9-yl)phenyl)-N-phenylbenzenamine (DPIAPPB) and 2-(10-(9H-carbazol-9-yl)anthracen-9-yl)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-phenanthro[9,10-d]imidazole (CADPPI) with hybridized local charge transfer state (HLCT) and hot exciton properties have been synthesized. These molecules show high photoluminescence quantum yield (Φ _s/f): (DPIAPPB - 0.82/0.70 and CADPPI - 0.91/0.83). The CADPPI based device (E

SUBMITTER: Jayabharathi J 

PROVIDER: S-EPMC9073535 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature