| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Outline of Final Research Achievements |
Recently, we have succeeded in minimizing the energy gap between the excited singlet state and the excited triplet state and suppressing the structural change in the excited state by the "multiple resonance effect" of boron and nitrogen atoms to develop pure blue thermally activated delayed fluorescence (TADF) materials with a photoluminescence quantum yield of >90%. In this study, based on this design guideline, we have developed new-DABNA, which exhibits ultra-narrowband blue emission comparable to that of inorganic luminescent materials, and OAB-ABP-1 and CzB2-M/P as pure green TADF materials. Both materials exhibit high external quantum efficiency of 20-35%, and are expected to be put to practical use in the near future.
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