biostudies-literatureJayabharathi JDepartment of Science and Technology of Sichuan Province33693-33709https://www.ebi.ac.uk/biostudies/studies/S-EPMC9073535biostudies-literatureUnknown9(58)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 (ERSC advancesStrategic tuning of excited-state properties of electroluminescent materials with enhanced hot exciton mixing.PMC9073535EMR/2014/000094Thanikachalam VRamya RJayabharathi JPanimozhi SfalseStrategic tuning of excited-state properties of electroluminescent materials with enhanced hot exciton mixing.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 (E2019-01-01T00:00:00Z2019 Oct2025-04-26T15:12:56.752Z2025-04-06T14:51:58.083ZS-EPMC90735353552892410.1039/c9ra07509g