Multiplicity conversion based on intramolecular triplet-to-singlet energy transfer

被引：50

作者：

Cravcenco, A. ^{[1
]}

Hertzog, M. ^{[1
]}

Ye, C. ^{[1
]}

Iqbal, M. N. ^{[2
]}

Mueller, U. ^{[3
]}

Eriksson, L. ^{[2
]}

Borjesson, K. ^{[1
]}

机构：

[1] Univ Gothenburg, Dept Chem & Mol Biol, SE-41296 Gothenburg, Sweden

[2] Stockholm Univ, Dept Mat & Environm Chem, SE-10691 Stockholm, Sweden

[3] Lund Univ, MAX Lab 4, SE-22100 Lund, Sweden

来源：

SCIENCE ADVANCES | 2019年 / 5卷 / 09期

基金：

瑞典研究理事会; 欧洲研究理事会;

关键词：

LIGHT-EMITTING-DIODES; IRIDIUM(III) COMPLEXES; PERYLENE; DESIGN; EMISSION; ACID; ACCUMULATION;

D O I：

10.1126/sciadv.aaw5978

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ability to convert between molecular spin states is of utmost importance in materials chemistry. Forster-type energy transfer is based on dipole-dipole interactions and can therefore theoretically be used to convert between molecular spin states. Here, a molecular dyad that is capable of transferring energy from an excited triplet state to an excited singlet state is presented. The rate of conversion between these states was shown to be 36 times faster than the rate of emission from the isolated triplet state. This dyad provides the first solid proof that Forster-type triplet-to-singlet energy transfer is possible, revealing a method to increase the rate of light extraction from excited triplet states.

引用

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