Magnetic field dependence of singlet fission in solutions of diphenyl tetracene

被引：12
|
作者：
Thompson, Nicholas J. [1 ]
Hontz, Eric [1 ]
Chang, Wendi [1 ]
Van Voorhis, Troy [1 ]
Baldo, Marc [1 ]
机构：
[1] MIT, Ctr Exciton, Cambridge, MA 02139 USA
来源：
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2015年 / 373卷 / 2044期
关键词：
singlet fission; tetracene; magnetic field effect; EXCITON-FISSION; DELAYED FLUORESCENCE; AROMATIC-HYDROCARBONS; TRIPLET EXCITONS; MUTUAL ANNIHILATION; FLUID SOLUTIONS; PHOTOVOLTAICS; CRYSTALS; DYNAMICS;
D O I：
10.1098/rsta.2014.0323
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：
Magnetic field effects provide a convenient and specific probe of singlet exciton fission within optoelectronic devices. Here, we demonstrate that this tool may also be applied to screen potential fission material candidates in solution. We characterize the phenomenon in diphenyl tetracene (DPT), which shows strong fluorescence modulation and the expected field dependence in its transient decay as a function of concentration. Solution measurements may also be used to test for the presence of an intermediate charge transfer state, but we observe no changes to the field dependence of DPT singlet exciton fission in toluene relative to chloroform.
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页数：7
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