Review Magnetic field effects on singlet fission dynamics

被引：18

作者：

Xu, Rong ^{[1
]}

Zhang, Chunfeng ^{[1
]}

Xiao, Min ^{[1
,2
]}

机构：

[1] State Univ, Natl Lab Solid, Nanjing 210093, Peoples R China

[2] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

来源：

TRENDS IN CHEMISTRY | 2022年 / 4卷 / 06期

基金：

国家重点研发计划; 美国国家科学基金会;

关键词：

TRIPLET-PAIR STATES; EXCITON-FISSION; PROMPT FLUORESCENCE; TETRACENE CRYSTALS; ENERGY-TRANSFER; QUANTUM BEATS; PENTACENE; COHERENT; EXCHANGE; ANNIHILATION;

D O I：

10.1016/j.trechm.2022.03.009

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Singletfission can double the photon-to-electron conversion efficiency by splittinga singlet exciton into two triplets via an intermediate state of a triplet pair. The spinmixing of tripletpair manifolds with different spin characters is a determining factorfor the efficiency offinal triplet generation. In this review, we summarize recentstudies of magneticfield effects (MFEs) on singletfission dynamics, from theoreti-cal models to recent experimental results. The analyses of MFEs support a three-step model with dynamic equilibrium between strongly and weakly coupled tripletpairs, suggesting an intermediate regime of intertriplet coupling to be favorable forsinglet-quintet mixing toward efficient triplet generation for practical applications.

引用

页码：528 / 539

页数：12

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