文章基本信息

标题：Highly efficient red OLEDs using DCJTB as the dopant and delayed fluorescent exciplex as the host
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作者：Bo Zhao ; Tianyou Zhang ; Bei Chu 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
期号：1
DOI：10.1038/srep10697
语种：English
出版社：Springer Nature
摘要：In this manuscript, we demonstrated a highly efficient DCJTB emission with delayed fluorescent exciplex TCTA:3P-T2T as the host. For the 1.0% DCJTB doped concentration, a maximum luminance, current efficiency, power efficiency and EQE of 22,767 cd m⁻², 22.7 cd A⁻¹, 21.5 lm W⁻¹ and 10.15% were achieved, respectively. The device performance is the best compared to either red OLEDs with traditional fluorescent emitter or traditional red phosphor of Ir(piq)₃ doped into CBP host. The extraction of so high efficiency can be explained as the efficient triplet excitons up-conversion of TCTA:3P-T2T and the energy transfer from exciplex host singlet state to DCJTB singlet state.