Controlling Singlet-Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters
Controlling Singlet-Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters
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DOI：
10.1002/anie.201609459
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发表时间：
2017-02-01
影响因子：
16.6
通讯作者：
Adachi, Chihaya
中科院分区：
文献类型：
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作者：
Cui, Lin-Song;Nomura, Hiroko;Adachi, Chihaya
开发具有热激活延迟荧光（TADF）特性的高效无金属有机发射体用于深蓝色发射仍然具有挑战性。一个新的家庭的深蓝色TADF发射器的基础上的施主-受体架构已经开发。给体和受体之间的电子相互作用在TADF机理中起着关键作用。用这些TADF发光体制备的深蓝色OLED获得了超过19.2%的高外量子效率，CIE坐标为（0.148，0.098）。
The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor-acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2% with CIE coordinates of (0.148, 0.098).