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Plasmonic Photocatalyst Design: Metal-Semiconductor Junction Affecting Photocatalytic Efficiency
Asian Inst Technol, Sch Engn & Technol, Ind Syst Engn, Nanotechnol, POB 4, Klongluang 12120, Pathumthani, Thailand..
KTH, School of Engineering Sciences (SCI), Applied Physics.ORCID iD: 0000-0002-0074-3504
2019 (English)In: Journal of Nanoscience and Nanotechnology, ISSN 1533-4880, E-ISSN 1533-4899, Vol. 19, no 1, p. 383-388Article in journal (Refereed) Published
Abstract [en]

Silver-zinc oxide nanorods (Ag-ZnO NRs) and gold-zinc oxide nanorods (Au-ZnO NRs) plasmonic photocatalysts were fabricated by the deposition of Ag and Au nanoparticles on ZnO NRs. The photocatalysts were studied with electron microscopy, energy dispersive spectroscopy (EDS), UV-vis optical absorption and photoluminescence spectroscopy. The effect of type of metals on the ZnO surface on its photocatalytic activity under ultra violet (UV) as well as visible light excitation are investigated and their contribution towards enhanced photo-generated charge separation in terms of the type of junction (Ohmic or Schottky) the metal forms with the semiconductor are explained.

Place, publisher, year, edition, pages
AMER SCIENTIFIC PUBLISHERS , 2019. Vol. 19, no 1, p. 383-388
Keywords [en]
Plasmonic Photocatalysis, Visible Light Photocatalysis, Metal-Semiconductor Catalyst, Ohmic Contact, Schottky Contact, Photocatalytic Treatment
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-238520DOI: 10.1166/jnn.2019.15785ISI: 000447641700049OAI: oai:DiVA.org:kth-238520DiVA, id: diva2:1261039
Note

QC 20181106

Available from: 2018-11-06 Created: 2018-11-06 Last updated: 2018-11-06Bibliographically approved

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Dutta, Joydeep

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