Title: Magnetic field dependence of singlet fission in solutions of diphenyl tetracene

Abstract

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. Furthermore, 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.

Authors:

Thompson, Nicholas J. ^[1]; Hontz, Eric ^[1]; Chang, Wendi ^[1]; Van Voorhis, Troy ^[1]; Baldo, Marc A. ^[1]

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+ Show Author Affiliations

1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Publication Date:

Mon May 18 00:00:00 EDT 2015

Research Org.:

Energy Frontier Research Centers (EFRC), Washington, D.C. (United States). Center for Excitonics (CE)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:

1210691

Grant/Contract Number:  

SC0001088

Resource Type:

Accepted Manuscript

Journal Name:

Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences

Additional Journal Information:

Journal Volume: 373; Journal Issue: 2044; Related Information: CE partners with Massachusetts Institute of Technology (lead); Brookhaven National Laboratory; Harvard University; Journal ID: ISSN 1364-503X

Publisher:

The Royal Society Publishing

Country of Publication:

United States

Language:

English

Subject:

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; solar (photovoltaic); solid state lighting; photosynthesis (natural and artificial); charge transport; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)