Enhancing Mo:BiVO 4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon-Induced Energy Transfer

Jung Kyu Kim, Xinjian Shi, Myung Jin Jeong, Joonsuk Park, Hyun Soo Han, Suk Hyun Kim, Yu Guo, Tony F. Heinz, Shanhui Fan, Chang Lyoul Lee, Jong Hyeok Park, Xiaolin Zheng

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Plasmonic metal nanostructures have been extensively investigated to improve the performance of metal oxide photoanodes for photoelectrochemical (PEC) solar water splitting cells. Most of these studies have focused on the effects of those metal nanostructures on enhancing light absorption and enabling direct energy transfer via hot electrons. However, several recent studies have shown that plasmonic metal nanostructures can improve the PEC performance of metal oxide photoanodes via another mechanism known as plasmon-induced resonant energy transfer (PIRET). However, this PIRET effect has not yet been tested for the molybdenum-doped bismuth vanadium oxide (Mo:BiVO 4 ), regarded as one of the best metal oxide photoanode candidates. Here, this study constructs a hybrid Au nanosphere/Mo:BiVO 4 photoanode interwoven in a hexagonal pattern to investigate the PIRET effect on the PEC performance of Mo:BiVO 4 . This study finds that the Au nanosphere array not only increases light absorption of the photoanode as expected, but also improves both its charge transport and charge transfer efficiencies via PIRET, as confirmed by time-correlated single photon counting and transient absorption studies. As a result, incorporating the Au nanosphere array increases the photocurrent density of Mo:BiVO 4 at 1.23 V versus RHE by ≈2.2-fold (2.83 mA cm −2 ).

Original languageEnglish
Article number1701765
JournalAdvanced Energy Materials
Volume8
Issue number5
DOIs
Publication statusPublished - 2018 Feb 15

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Nanospheres
Energy transfer
Metals
Oxides
Water
Nanostructures
Light absorption
Charge transfer
Vanadium
Bismuth
Molybdenum
Hot electrons
Photocurrents
Photons

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Kim, Jung Kyu ; Shi, Xinjian ; Jeong, Myung Jin ; Park, Joonsuk ; Han, Hyun Soo ; Kim, Suk Hyun ; Guo, Yu ; Heinz, Tony F. ; Fan, Shanhui ; Lee, Chang Lyoul ; Park, Jong Hyeok ; Zheng, Xiaolin. / Enhancing Mo:BiVO 4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon-Induced Energy Transfer In: Advanced Energy Materials. 2018 ; Vol. 8, No. 5.
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Kim, JK, Shi, X, Jeong, MJ, Park, J, Han, HS, Kim, SH, Guo, Y, Heinz, TF, Fan, S, Lee, CL, Park, JH & Zheng, X 2018, ' Enhancing Mo:BiVO 4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon-Induced Energy Transfer ', Advanced Energy Materials, vol. 8, no. 5, 1701765. https://doi.org/10.1002/aenm.201701765

Enhancing Mo:BiVO 4 Solar Water Splitting with Patterned Au Nanospheres by Plasmon-Induced Energy Transfer . / Kim, Jung Kyu; Shi, Xinjian; Jeong, Myung Jin; Park, Joonsuk; Han, Hyun Soo; Kim, Suk Hyun; Guo, Yu; Heinz, Tony F.; Fan, Shanhui; Lee, Chang Lyoul; Park, Jong Hyeok; Zheng, Xiaolin.

In: Advanced Energy Materials, Vol. 8, No. 5, 1701765, 15.02.2018.

Research output: Contribution to journalArticle

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AU - Han, Hyun Soo

AU - Kim, Suk Hyun

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AU - Heinz, Tony F.

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AU - Zheng, Xiaolin

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