Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Unassisted Water Splitting Using a GaSbxP(1-x) Photoanode

Abstract

Abstract Here, unbiased water splitting with 2% solar‐to‐hydrogen efficiency under AM 1.5 G illumination using new materials based on GaSb 0.03 P 0.97 alloy is reported. Freestanding GaSb x P 1− x is grown using halide vapor phase epitaxy. The native conductivity type of the alloy is modified by silicon doping, resulting in an open‐circuit potential (OCP) of 750 mV, photocurrents of 7 mA cm −2 at 10 sun illumination, and corrosion resistance in an aqueous acidic environment. Alloying GaP with Sb at 3 at% improves the absorption of high‐energy photons above 2.68 eV compared to pure GaP material. Electrochemical Impedance Spectroscopy and illuminated OCP measurements show that the conduction band of GaSb x P 1− x is at −0.55 V versus RHE irrespective of the Sb concentration, while photocurrent spectroscopy indicates that only radiation with photon energies greater than 2.68 eV generate mobile and extractable charges, thus suggesting that the higher‐laying conduction bands in the Γ 1 valley of the alloys are responsible for exciton generation.

Authors:
 [1];  [1];  [2];  [2];  [1];  [3];  [4];  [5];  [5];  [6]
+ Show Author Affiliations
  1. Univ. of Louisville, KY (United States). Department of Chemical Engineering
  2. Univ. of Louisville, KY (United States). Conn Center for Renewable Energy Research
  3. Univ. of Louisville, KY (United States). Center for Computational Sciences
  4. Daimler AG, RD/EKB, Ulm (Germany)
  5. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  6. Univ. of Louisville, KY (United States). Department of Chemical Engineering and Conn Center for Renewable Energy Research
Publication Date:
Research Org.:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office (HFTO)
OSTI Identifier:
1426640
Alternate Identifier(s):
OSTI ID: 1422018
Report Number(s):
NREL/JA-5900-70812
Journal ID: ISSN 1614-6832
Grant/Contract Number:  
AC36-08GO28308; DE‐AC36‐08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 16; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; bandgap tuning; DFT calculations; HVPE; III-V alloy; water splitting

Citation Formats

Martinez-Garcia, Alejandro, Russell, Harry B., Paxton, William, Ravipati, Srikanth, Calero-Barney, Sonia, Menon, Madhu, Richter, Ernst, Young, James, Deutsch, Todd, and Sunkara, Mahendra K. Unassisted Water Splitting Using a GaSbxP(1-x) Photoanode. United States: N. p., 2018. Web. doi:10.1002/aenm.201703247.
Copy to clipboard
Martinez-Garcia, Alejandro, Russell, Harry B., Paxton, William, Ravipati, Srikanth, Calero-Barney, Sonia, Menon, Madhu, Richter, Ernst, Young, James, Deutsch, Todd, & Sunkara, Mahendra K. Unassisted Water Splitting Using a GaSbxP(1-x) Photoanode. United States. https://doi.org/10.1002/aenm.201703247
Copy to clipboard
Martinez-Garcia, Alejandro, Russell, Harry B., Paxton, William, Ravipati, Srikanth, Calero-Barney, Sonia, Menon, Madhu, Richter, Ernst, Young, James, Deutsch, Todd, and Sunkara, Mahendra K. Wed . "Unassisted Water Splitting Using a GaSbxP(1-x) Photoanode". United States. https://doi.org/10.1002/aenm.201703247. https://www.osti.gov/servlets/purl/1426640.
Copy to clipboard
@article{osti_1426640,
title = {Unassisted Water Splitting Using a GaSbxP(1-x) Photoanode},
author = {Martinez-Garcia, Alejandro and Russell, Harry B. and Paxton, William and Ravipati, Srikanth and Calero-Barney, Sonia and Menon, Madhu and Richter, Ernst and Young, James and Deutsch, Todd and Sunkara, Mahendra K.},
abstractNote = {Abstract Here, unbiased water splitting with 2% solar‐to‐hydrogen efficiency under AM 1.5 G illumination using new materials based on GaSb 0.03 P 0.97 alloy is reported. Freestanding GaSb x P 1− x is grown using halide vapor phase epitaxy. The native conductivity type of the alloy is modified by silicon doping, resulting in an open‐circuit potential (OCP) of 750 mV, photocurrents of 7 mA cm −2 at 10 sun illumination, and corrosion resistance in an aqueous acidic environment. Alloying GaP with Sb at 3 at% improves the absorption of high‐energy photons above 2.68 eV compared to pure GaP material. Electrochemical Impedance Spectroscopy and illuminated OCP measurements show that the conduction band of GaSb x P 1− x is at −0.55 V versus RHE irrespective of the Sb concentration, while photocurrent spectroscopy indicates that only radiation with photon energies greater than 2.68 eV generate mobile and extractable charges, thus suggesting that the higher‐laying conduction bands in the Γ 1 valley of the alloys are responsible for exciton generation.},
doi = {10.1002/aenm.201703247},
journal = {Advanced Energy Materials},
number = 16,
volume = 8,
place = {United States},
year = {Wed Feb 21 00:00:00 EST 2018},
month = {Wed Feb 21 00:00:00 EST 2018}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/aenm.201703247
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: HVPE-grown GaSb0.03P0.97 free-standing films a) X-ray diffraction pattern for GaSbxP(1-x) (GaP [PDF 01- 0722146] shown for comparison), b)-c) SEM cross-sectional views
All figures and tables (6 total)
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

Highly active oxide photocathode for photoelectrochemical water reduction
journal, May 2011

  • Paracchino, Adriana; Laporte, Vincent; Sivula, Kevin
  • Nature Materials, Vol. 10, Issue 6
  • DOI: 10.1038/nmat3017

Photo-assisted electrodeposition of cobalt–phosphate (Co–Pi) catalyst on hematite photoanodes for solar water oxidation
journal, January 2011

  • Zhong, Diane K.; Cornuz, Maurin; Sivula, Kevin
  • Energy & Environmental Science, Vol. 4, Issue 5
  • DOI: 10.1039/c1ee01034d

Nanoporous BiVO4 Photoanodes with Dual-Layer Oxygen Evolution Catalysts for Solar Water Splitting
journal, February 2014

Direct Band Gap Gallium Antimony Phosphide (GaSbxP1−x) Alloys
journal, February 2016

  • Russell, H. B.; Andriotis, A. N.; Menon, M.
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep20822

Water reduction by a p-GaInP2 photoelectrode stabilized by an amorphous TiO2 coating and a molecular cobalt catalyst
journal, December 2015

  • Gu, Jing; Yan, Yong; Young, James L.
  • Nature Materials, Vol. 15, Issue 4
  • DOI: 10.1038/nmat4511

Photoelectrochemical Water Splitting
book, January 2013

Photoelectrochemical Tandem Cells for Solar Water Splitting
journal, July 2013

  • Prévot, Mathieu S.; Sivula, Kevin
  • The Journal of Physical Chemistry C, Vol. 117, Issue 35
  • DOI: 10.1021/jp405291g

Efficient water reduction with gallium phosphide nanowires
journal, July 2015

  • Standing, Anthony; Assali, Simone; Gao, Lu
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8824

Effect of Technical Parameters on Surface Morphology of Electrodeposition of Iridium Layer in Aqueous System
journal, July 2012

Recent developments in solar water-splitting photocatalysis
journal, January 2011

  • Osterloh, Frank E.; Parkinson, Bruce A.
  • MRS Bulletin, Vol. 36, Issue 1
  • DOI: 10.1557/mrs.2010.5

Enabling an integrated tantalum nitride photoanode to approach the theoretical photocurrent limit for solar water splitting
journal, January 2016

  • Liu, Guiji; Ye, Sheng; Yan, Pengli
  • Energy & Environmental Science, Vol. 9, Issue 4
  • DOI: 10.1039/C5EE03802B

Thermodynamic Oxidation and Reduction Potentials of Photocatalytic Semiconductors in Aqueous Solution
journal, September 2012

  • Chen, Shiyou; Wang, Lin-Wang
  • Chemistry of Materials, Vol. 24, Issue 18
  • DOI: 10.1021/cm302533s

An analysis of the optimal band gaps of light absorbers in integrated tandem photoelectrochemical water-splitting systems
journal, January 2013

  • Hu, Shu; Xiang, Chengxiang; Haussener, Sophia
  • Energy & Environmental Science, Vol. 6, Issue 10
  • DOI: 10.1039/c3ee40453f

New Visible Light Absorbing Materials for Solar Fuels, Ga(Sb x )N 1− x
journal, February 2014

  • Sunkara, Swathi; Vendra, Venkat Kalyan; Jasinski, Jacek Bogdan
  • Advanced Materials, Vol. 26, Issue 18
  • DOI: 10.1002/adma.201305083

Cover Picture: Template Synthesis of Linear-Chain Nanodiamonds Inside Carbon Nanotubes from Bridgehead-Halogenated Diamantane Precursors (Angew. Chem. Int. Ed. 37/2015)
journal, August 2015

  • Nakanishi, Yusuke; Omachi, Haruka; Fokina, Natalie A.
  • Angewandte Chemie International Edition, Vol. 54, Issue 37
  • DOI: 10.1002/anie.201506980

Effect of silicon and oxygen doping on donor bound excitons in bulk GaN
journal, October 2011

Back Electron–Hole Recombination in Hematite Photoanodes for Water Splitting
journal, January 2014

  • Le Formal, Florian; Pendlebury, Stephanie R.; Cornuz, Maurin
  • Journal of the American Chemical Society, Vol. 136, Issue 6
  • DOI: 10.1021/ja412058x

Photoelectrochemical Behavior of Planar and Microwire-Array Si|GaP Electrodes
journal, June 2012

  • Strandwitz, Nicholas C.; Turner-Evans, Daniel B.; Tamboli, Adele C.
  • Advanced Energy Materials, Vol. 2, Issue 9
  • DOI: 10.1002/aenm.201100728

Perovskite–Hematite Tandem Cells for Efficient Overall Solar Driven Water Splitting
journal, May 2015

Ultrathin films on copper(i) oxide water splitting photocathodes: a study on performance and stability
journal, January 2012

  • Paracchino, Adriana; Mathews, Nripan; Hisatomi, Takashi
  • Energy & Environmental Science, Vol. 5, Issue 9
  • DOI: 10.1039/c2ee22063f

Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting
journal, January 2014

  • Hisatomi, Takashi; Kubota, Jun; Domen, Kazunari
  • Chem. Soc. Rev., Vol. 43, Issue 22
  • DOI: 10.1039/C3CS60378D

Near-Complete Suppression of Surface Recombination in Solar Photoelectrolysis by “Co-Pi” Catalyst-Modified W:BiVO 4
journal, November 2011

  • Zhong, Diane K.; Choi, Sujung; Gamelin, Daniel R.
  • Journal of the American Chemical Society, Vol. 133, Issue 45
  • DOI: 10.1021/ja207348x

Wafer-Scale Fabrication of Self-Catalyzed 1.7 eV GaAsP Core–Shell Nanowire Photocathode on Silicon Substrates
journal, March 2014

  • Wu, Jiang; Li, Yanbo; Kubota, Jun
  • Nano Letters, Vol. 14, Issue 4
  • DOI: 10.1021/nl500170m

Cobalt phosphate-modified barium-doped tantalum nitride nanorod photoanode with 1.5% solar energy conversion efficiency
journal, October 2013

  • Li, Yanbo; Zhang, Li; Torres-Pardo, Almudena
  • Nature Communications, Vol. 4, Issue 1
  • DOI: 10.1038/ncomms3566
    Sort by:
    [ × clear filter / sort ]

    Works referencing / citing this record:

    A methodological review on material growth and synthesis of solar-driven water splitting photoelectrochemical cells
    journal, January 2019

    • Park, Kwangwook; Kim, Yeong Jae; Yoon, Taeho
    • RSC Advances, Vol. 9, Issue 52
    • DOI: 10.1039/c9ra05341g

    Photoelectrochemical water oxidation of GaP 1−x Sb x with a direct band gap of 1.65 eV for full spectrum solar energy harvesting
    journal, January 2019

    • Alqahtani, Mahdi; Sathasivam, Sanjayan; Chen, Lipin
    • Sustainable Energy & Fuels, Vol. 3, Issue 7
    • DOI: 10.1039/c9se00113a
      Sort by:
      [ × clear filter / sort ]

      Figures / Tables found in this record:

      Figure 1 (p. 5)figure
      Figure 2 (p. 6)figure
      Figure 3 (p. 9)figure
      Figure 4 (p. 11)figure
      Figure 5 (p. 12)figure
      Figure 6 (p. 14)figure
        [ × clear filter / sort ]
        Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

        Similar Records in DOE PAGES and OSTI.GOV collections: