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

Abstract

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:
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)
OSTI Identifier:
1377091
Alternate Identifier(s):
OSTI ID: 1465987
Grant/Contract Number:  
NE0008539; SC0001011
Resource Type:
Journal Article: 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)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; water oxidation; DSPEC; core/shell; plasmonic; atomic layer deposition

Citation Formats

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., 2017. 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.. Mon . "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 = {Mon Aug 28 00:00:00 EDT 2017},
month = {Mon Aug 28 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1073/pnas.1708336114

Citation Metrics:
Cited by: 2 works
Citation information provided by
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Works referenced in this record:

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