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Title: Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell

Abstract

The interactions between a surface-adsorbed dye and a soluble redox-active electrolyte species in the dye-sensitized solar cell has a significant impact on the rate of regeneration of photo-oxidized dye molecules and open-circuit voltage of the device. Dyes must therefore be designed to encourage these interfacial interactions, but experimentally resolving how such weak interactions affect electron transfer is challenging. Herein, we use X-ray absorption spectroscopy to confirm halogen bonding can exist at the dye-electrolyte interface. Using a known series of triphenylamine-based dyes bearing halogen substituents geometrically positioned for reaction with halides in solution, halogen bonding was detected only in cases where brominated and iodinated dyes were photo-oxidized. This result implies that weak intermolecular interactions between photo-oxidized dyes and the electrolyte can impact device photovoltages. This result was unexpected considering the low concentration of oxidized dyes (less than 1 in 100,000) under full solar illumination.

Authors:
 [1];  [2];  [2];  [2];  [3];  [3]; ORCiD logo [2]; ORCiD logo [4]
  1. Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Chemistry and Stewart Blusson Quantum Matter Inst.
  2. Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Chemistry
  3. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Chemistry
  4. Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Chemistry, Stewart Blusson Quantum Matter Inst. and Dept. of Chemical and Biological Engineering
Publication Date:
Research Org.:
University of North Carolina, Chapel Hill, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
OSTI Identifier:
1523468
Grant/Contract Number:  
SC0013461
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Parlane, Fraser G. L., Mustoe, Chantal, Kellett, Cameron W., Simon, Sarah J., Swords, Wesley B., Meyer, Gerald J., Kennepohl, Pierre, and Berlinguette, Curtis P. Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell. United States: N. p., 2017. Web. doi:10.1038/s41467-017-01726-7.
Parlane, Fraser G. L., Mustoe, Chantal, Kellett, Cameron W., Simon, Sarah J., Swords, Wesley B., Meyer, Gerald J., Kennepohl, Pierre, & Berlinguette, Curtis P. Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell. United States. https://doi.org/10.1038/s41467-017-01726-7
Parlane, Fraser G. L., Mustoe, Chantal, Kellett, Cameron W., Simon, Sarah J., Swords, Wesley B., Meyer, Gerald J., Kennepohl, Pierre, and Berlinguette, Curtis P. Fri . "Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell". United States. https://doi.org/10.1038/s41467-017-01726-7. https://www.osti.gov/servlets/purl/1523468.
@article{osti_1523468,
title = {Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell},
author = {Parlane, Fraser G. L. and Mustoe, Chantal and Kellett, Cameron W. and Simon, Sarah J. and Swords, Wesley B. and Meyer, Gerald J. and Kennepohl, Pierre and Berlinguette, Curtis P.},
abstractNote = {The interactions between a surface-adsorbed dye and a soluble redox-active electrolyte species in the dye-sensitized solar cell has a significant impact on the rate of regeneration of photo-oxidized dye molecules and open-circuit voltage of the device. Dyes must therefore be designed to encourage these interfacial interactions, but experimentally resolving how such weak interactions affect electron transfer is challenging. Herein, we use X-ray absorption spectroscopy to confirm halogen bonding can exist at the dye-electrolyte interface. Using a known series of triphenylamine-based dyes bearing halogen substituents geometrically positioned for reaction with halides in solution, halogen bonding was detected only in cases where brominated and iodinated dyes were photo-oxidized. This result implies that weak intermolecular interactions between photo-oxidized dyes and the electrolyte can impact device photovoltages. This result was unexpected considering the low concentration of oxidized dyes (less than 1 in 100,000) under full solar illumination.},
doi = {10.1038/s41467-017-01726-7},
journal = {Nature Communications},
number = 1,
volume = 8,
place = {United States},
year = {Fri Nov 24 00:00:00 EST 2017},
month = {Fri Nov 24 00:00:00 EST 2017}
}

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Cited by: 33 works
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Figures / Tables:

Fig. 1 Fig. 1: Dye structure and an overview of interfacial electron transfer reactions. Molecular representation of Dye-X on a titanium dioxide (TiO2) particle (not drawn to scale) where different halogen substituents (X= F, Cl, Br, or I) are bound to the TPA portion of the dye. The carboxylate group serves tomore » fix the dye to the TiO2 nanoparticle and directs the halogen substituents towards the soluble nucleophilic species (e.g., iodide)« less

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journal, January 2013

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Evidence for Halogen Bond Covalency in Acyclic and Interlocked Halogen-Bonding Receptor Anion Recognition
journal, December 2014

  • Robinson, Sean W.; Mustoe, Chantal L.; White, Nicholas G.
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Halogen Bonding Promotes Higher Dye-Sensitized Solar Cell Photovoltages
journal, August 2016

  • Simon, Sarah J. C.; Parlane, Fraser G. L.; Swords, Wesley B.
  • Journal of the American Chemical Society, Vol. 138, Issue 33
  • DOI: 10.1021/jacs.6b06288

Correlations between Computation and Experimental Thermodynamics of Halogen Bonding
journal, March 2012

  • Chudzinski, Michael G.; Taylor, Mark S.
  • The Journal of Organic Chemistry, Vol. 77, Issue 7
  • DOI: 10.1021/jo300279m

On the Spectroscopic and Thermochemical Properties of ClO, BrO, IO, and Their Anions
journal, December 2006

  • Peterson, Kirk A.; Shepler, Benjamin C.; Figgen, Detlev
  • The Journal of Physical Chemistry A, Vol. 110, Issue 51
  • DOI: 10.1021/jp065887l

Computational Spectroscopy Characterization of the Species Involved in Dye Oxidation and Regeneration Processes in Dye-Sensitized Solar Cells
journal, August 2011

  • Lobello, Maria Grazia; Fantacci, Simona; De Angelis, Filippo
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Works referencing / citing this record:

Nanoarchitectures in dye-sensitized solar cells: metal oxides, oxide perovskites and carbon-based materials
journal, January 2018

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Halogen-Bond Assisted Photoinduced Electron Transfer
journal, November 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.