skip to main content

DOE PAGESDOE PAGES

Title: Plasmon-enhanced light-driven water oxidation by a dye-sensitized photoanode

Dye-sensitized photoelectrosynthesis cells (DSPECs) provide a flexible approach for solar water splitting based on the integration of molecular light absorption and catalysis on oxide electrodes. Recent advances in this area, including the use of core/shell oxide interfacial structures and surface stabilization by atomic layer deposition, have led to improved charge-separation lifetimes and the ability to obtain substantially improved photocurrent densities. Furthermore, we investigate the introduction of Ag nanoparticles into the core/shell structure and report that they greatly enhance light-driven water oxidation at a DSPEC photoanode. Under 1-sun illumination, Ag nanoparticle electrodes achieved high photocurrent densities, surpassing 2 mA cm –2 with an incident photon-to-current efficiency of 31.8% under 450-nm illumination.
Authors:
 [1] ; ORCiD logo [2] ;  [3] ;  [1] ;  [1] ;  [1] ; ORCiD logo [4] ;  [1]
  1. Univ. of North Carolina at Chapel Hill, Chapel Hill, NC (United States)
  2. Univ. of North Carolina at Chapel Hill, Chapel Hill, NC (United States); Texas Christian Univ., Fort Worth, TX (United States)
  3. Univ. of North Carolina at Chapel Hill, Chapel Hill, NC (United States); Auburn Univ., Auburn, AL (United States)
  4. Auburn Univ., Auburn, AL (United States)
Publication Date:
Grant/Contract Number:
NE0008539; SC0001011
Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 114; Journal Issue: 37; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Research Org:
Florida Intl Univ., Miami, FL (United States); Univ. of North Carolina at Chapel Hill, Chapel Hill, NC (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; water oxidation; DSPEC; core/shell; plasmonic; atomic layer deposition
OSTI Identifier:
1377091
Alternate Identifier(s):
OSTI ID: 1465987

Wang, Degao, Sherman, Benjamin D., Farnum, Byron H., Sheridan, Matthew V., Marquard, Seth L., Eberhart, Michael S., Dares, Christopher J., and Meyer, Thomas J.. Plasmon-enhanced light-driven water oxidation by a dye-sensitized photoanode. United States: N. p., Web. doi:10.1073/pnas.1708336114.
Wang, Degao, Sherman, Benjamin D., Farnum, Byron H., Sheridan, Matthew V., Marquard, Seth L., Eberhart, Michael S., Dares, Christopher J., & Meyer, Thomas J.. Plasmon-enhanced light-driven water oxidation by a dye-sensitized photoanode. United States. doi:10.1073/pnas.1708336114.
Wang, Degao, Sherman, Benjamin D., Farnum, Byron H., Sheridan, Matthew V., Marquard, Seth L., Eberhart, Michael S., Dares, Christopher J., and Meyer, Thomas J.. 2017. "Plasmon-enhanced light-driven water oxidation by a dye-sensitized photoanode". United States. doi:10.1073/pnas.1708336114.
@article{osti_1377091,
title = {Plasmon-enhanced light-driven water oxidation by a dye-sensitized photoanode},
author = {Wang, Degao and Sherman, Benjamin D. and Farnum, Byron H. and Sheridan, Matthew V. and Marquard, Seth L. and Eberhart, Michael S. and Dares, Christopher J. and Meyer, Thomas J.},
abstractNote = {Dye-sensitized photoelectrosynthesis cells (DSPECs) provide a flexible approach for solar water splitting based on the integration of molecular light absorption and catalysis on oxide electrodes. Recent advances in this area, including the use of core/shell oxide interfacial structures and surface stabilization by atomic layer deposition, have led to improved charge-separation lifetimes and the ability to obtain substantially improved photocurrent densities. Furthermore, we investigate the introduction of Ag nanoparticles into the core/shell structure and report that they greatly enhance light-driven water oxidation at a DSPEC photoanode. Under 1-sun illumination, Ag nanoparticle electrodes achieved high photocurrent densities, surpassing 2 mA cm–2 with an incident photon-to-current efficiency of 31.8% under 450-nm illumination.},
doi = {10.1073/pnas.1708336114},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 37,
volume = 114,
place = {United States},
year = {2017},
month = {8}
}

Works referenced in this record:

Plasmonics for improved photovoltaic devices
journal, February 2010
  • Atwater, Harry A.; Polman, Albert
  • Nature Materials, Vol. 9, Issue 3, p. 205-213
  • DOI: 10.1038/nmat2629

A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
journal, October 1991
  • O'Regan, Brian; Grätzel, Michael
  • Nature, Vol. 353, Issue 6346, p. 737-740
  • DOI: 10.1038/353737a0

Surface plasmon subwavelength optics
journal, August 2003
  • Barnes, William L.; Dereux, Alain; Ebbesen, Thomas W.
  • Nature, Vol. 424, Issue 6950, p. 824-830
  • DOI: 10.1038/nature01937