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Title: Lessons from intramolecular singlet fission with covalently bound chromophores

Abstract

Molecular dimers, oligomers, and polymers are versatile components in photophysical and optoelectronic architectures that could impact a large variety of applications. We present a perspective on such systems in the field of singlet fission, which effectively multiplies excitons and produces a unique excited state species, the triplet pair. The choice of chromophore and the nature of the attachment between units, both geometrical and chemical, play a defining role in the dynamical scheme that evolves upon photoexcitation. Specific final outcomes (e.g., separated and uncorrelated triplet pairs) are being sought through rational design of covalently bound chromophore architectures built with guidance from recent fundamental studies that correlate structure with excited state population flow kinetics.

Authors:
 [1];  [1]; ORCiD logo [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1600904
Alternate Identifier(s):
OSTI ID: 1595504
Report Number(s):
NREL/JA-5900-75360
Journal ID: ISSN 0021-9606
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 152; Journal Issue: 4; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; isomerism; photochemistry; ultrafast molecular spectra; molecular dynamics; photoexcitations; delocalization; electronic coupling; chemical compounds; excitons; chemical bonding

Citation Formats

Korovina, Nadezhda, Pompetti, Nicholas, and Johnson, Justin C. Lessons from intramolecular singlet fission with covalently bound chromophores. United States: N. p., 2020. Web. doi:10.1063/1.5135307.
Korovina, Nadezhda, Pompetti, Nicholas, & Johnson, Justin C. Lessons from intramolecular singlet fission with covalently bound chromophores. United States. doi:10.1063/1.5135307.
Korovina, Nadezhda, Pompetti, Nicholas, and Johnson, Justin C. Tue . "Lessons from intramolecular singlet fission with covalently bound chromophores". United States. doi:10.1063/1.5135307.
@article{osti_1600904,
title = {Lessons from intramolecular singlet fission with covalently bound chromophores},
author = {Korovina, Nadezhda and Pompetti, Nicholas and Johnson, Justin C.},
abstractNote = {Molecular dimers, oligomers, and polymers are versatile components in photophysical and optoelectronic architectures that could impact a large variety of applications. We present a perspective on such systems in the field of singlet fission, which effectively multiplies excitons and produces a unique excited state species, the triplet pair. The choice of chromophore and the nature of the attachment between units, both geometrical and chemical, play a defining role in the dynamical scheme that evolves upon photoexcitation. Specific final outcomes (e.g., separated and uncorrelated triplet pairs) are being sought through rational design of covalently bound chromophore architectures built with guidance from recent fundamental studies that correlate structure with excited state population flow kinetics.},
doi = {10.1063/1.5135307},
journal = {Journal of Chemical Physics},
number = 4,
volume = 152,
place = {United States},
year = {2020},
month = {1}
}

Journal Article:
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