4.8 Article

Detuning Effects on the Reverse Intersystem Crossing from Triplet Exciton to Lower Polariton

期刊

JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 13, 期 40, 页码 9279-9286

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.2c02557

关键词

-

资金

  1. National Natural Science Foundation of China
  2. Ministry of Science and Technology of China through the National Key R D Plan
  3. [21788102]
  4. [2017YFA0204501]

向作者/读者索取更多资源

Through the investigation of the reverse intersystem crossing process in cavity devices, we found that changing the detuning energy can significantly increase the rate of this process. At the same time, the incident angle and doping concentration also affect the rate. This theory provides a solid foundation for the design of highly efficient cavity-promoted light-emitting materials.
The lower polariton (LP) can reduce the energy barrier of the reverse intersystem crossing (rISC) process from T1 to harvest triplet energy for fluorescence. Based on a Tavis-Cummings model including both singlet and triplet excitons, both coupled with quantized photons, we derive here a comprehensive rISC rate formalism. We found that the latter consists of three contributions: the one originated from spin-orbit coupling as first obtained by Martinez-Martinez et al. (J. Chem. Phys. 2019, 151, 054106), the one from light-matter coupling of Ou et al. (J. Am. Chem. Soc. 2021, 143, 17786), and the cross-term first reported here. We apply the formalism to investigate the experimentally observed barrier-free rISC (BFrISC) process in cavity devices with DABNA-2 molecular thin film. We found it can be attributed to the detuning effect. The rISC rates can be increased by orders of magnitude through changing the detuning energy to realize the BFrISC process. In addition, the BFrISC rates exhibit a maximum as a function of the incident angle and the doping concentration. The formalism provides a solid ground for molecular design toward highly efficient cavity-promoted light-emitting materials.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据