期刊
ORGANIC LETTERS
卷 18, 期 4, 页码 672-675出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.5b03631
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资金
- Ministry of Science and Technology, R.O.C. [MOST 104-2119-M-002-023, 101-2113-M-002-010-MY3, 103-3113-E-155-001, 104-3113-E-155-001, 105-3113-E-155-001, 103-2221-E-155-028-MY3, 104-2221-E-002-156-MY3, NSC 102-2221-E-002-182-MY3]
The novel ambipolar hosts of o-CbzBz and o-DiCbzBz contain carbazole and benzimidazole through an ortho-connection. The orthogonal conformations cause the triplet state to be confined at the carbazole units to secure efficient energy transfer. The phoSphorescent organic light-emitting diodes (PhOLEDs) show a high current efficiency, power efficiency, and low efficiency roll-off o-DiCbzBz can be used as a host for sky-blue, green, and orange-red PhOLEDs, giving 57.5, 78.4, and 60.3 cd/A, respectively.
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