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Title: Quantitative intramolecular fission in oligoacenes, materials, and methods of use thereof

Abstract

The present invention provides soluble, stable singlet fission (SF) compounds, compositions, materials, methods of their use, and methods for their preparation that provide efficient intramolecular singlet fission (iSF) and multiple excitons. The SF compound may be a dimer, an oligomer, or a polymer of polyoligoacenes, where for example, the compound achieves a triplet yield reaching about 200% per absorbed photon. In this system, SF does not depend on intermolecular inter-actions. Instead, SF is an intrinsic property of the molecule and therefore occurs independent of intermolecular interactions. Singlet fission has the potential to significantly improve the photocurrent in single junction solar cells and thus raise the Shockley-Queisser power conversion efficiency limit from about 33% to about 46% or greater. Quantitative SF yield at room temperature has only been observed in crystalline solids or aggregates of higher acenes.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735179
Patent Number(s):
10752730
Application Number:
15/536,964
Assignee:
The Trustees of Columbia University in the City of New York (New York, NY); Bookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
DOE Contract Number:  
AC02-98CH10886; SC0012704
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/17/2015
Country of Publication:
United States
Language:
English

Citation Formats

Campos, Luis Miguel, Sfeir, Matthew Y., Sanders, Samuel Nathan, Kumarasamy, Elango, Pun, Andrew Brian, and Steigerwald, Michael Louis. Quantitative intramolecular fission in oligoacenes, materials, and methods of use thereof. United States: N. p., 2020. Web.
Campos, Luis Miguel, Sfeir, Matthew Y., Sanders, Samuel Nathan, Kumarasamy, Elango, Pun, Andrew Brian, & Steigerwald, Michael Louis. Quantitative intramolecular fission in oligoacenes, materials, and methods of use thereof. United States.
Campos, Luis Miguel, Sfeir, Matthew Y., Sanders, Samuel Nathan, Kumarasamy, Elango, Pun, Andrew Brian, and Steigerwald, Michael Louis. Tue . "Quantitative intramolecular fission in oligoacenes, materials, and methods of use thereof". United States. https://www.osti.gov/servlets/purl/1735179.
@article{osti_1735179,
title = {Quantitative intramolecular fission in oligoacenes, materials, and methods of use thereof},
author = {Campos, Luis Miguel and Sfeir, Matthew Y. and Sanders, Samuel Nathan and Kumarasamy, Elango and Pun, Andrew Brian and Steigerwald, Michael Louis},
abstractNote = {The present invention provides soluble, stable singlet fission (SF) compounds, compositions, materials, methods of their use, and methods for their preparation that provide efficient intramolecular singlet fission (iSF) and multiple excitons. The SF compound may be a dimer, an oligomer, or a polymer of polyoligoacenes, where for example, the compound achieves a triplet yield reaching about 200% per absorbed photon. In this system, SF does not depend on intermolecular inter-actions. Instead, SF is an intrinsic property of the molecule and therefore occurs independent of intermolecular interactions. Singlet fission has the potential to significantly improve the photocurrent in single junction solar cells and thus raise the Shockley-Queisser power conversion efficiency limit from about 33% to about 46% or greater. Quantitative SF yield at room temperature has only been observed in crystalline solids or aggregates of higher acenes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {8}
}

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