Designing Stable Deep-Blue Thermally Activated Delayed Fluorescence Emitters through Controlling the Intrinsic Stability of Triplet Excitons (Advanced Optical Materials 12/2022),Advanced Optical Materials

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Designing Stable Deep-Blue Thermally Activated Delayed Fluorescence Emitters through Controlling the Intrinsic Stability of Triplet Excitons (Advanced Optical Materials 12/2022)
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2022-06-20 , DOI: 10.1002/adom.202270048
Hosuk Kang _{1,

2} , Soo‐Ghang Ihn ₁ , Inkoo Kim ₃ , Yeon Sook Chung ₁ , Soon Ok Jeon ₁ , Myungsun Sim ₁ , Joonghyuk Kim ₁ , Hasup Lee ₁ , Youngmok Son ₁ , Won‐Joon Son ₂ , Inkook Jang ₃ , Dae Sin Kim ₃ , Hyeonho Choi ₁ , Jin Pyo Hong ₃

Affiliation

In article number 2102309, Soo-Ghang Ihn, Won-Joon Son, Jin Pyo Hong and co-workers establish rational design principles for stable blue organic emitters with high chemical stability in triplet states. Repositioning the locus of triplet excitation away from the weakest bond via judicious molecular engineering reroutes the dissociation pathway to energetically less favorable and kinetically less probable conical intersection with a higher energy barrier. This research provides new insights into the excited-state dissociation kinetics involved in molecular degradation under electrical stress.

中文翻译：

通过控制三重态激子的本征稳定性来设计稳定的深蓝色热激活延迟荧光发射器（Advanced Optical Materials 12/2022）

在文章编号 2102309 中，Soo-Ghang Ihn、Won-Joon Son、Jin Pyo Hong 及其同事为在三重态下具有高化学稳定性的稳定蓝色有机发光体建立了合理的设计原则。通过明智的分子工程将三重激发的轨迹从最弱的键处重新定位，将解离途径重新路由到能量上不太有利且在动力学上不太可能与更高能垒的锥形相交。这项研究为电应力下分子降解所涉及的激发态解离动力学提供了新的见解。

更新日期：2022-06-20

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