Single-material multilayer with enhanced photoactivity

Journal Article · Mon Oct 18 00:00:00 EDT 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3502480· OSTI ID:21464530

Beydaghyan, Gisia; Boudreau, Mathieu; Riordon, Jason; Hache, Alain; Ashrit, P V ^[1]

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1. Department of Physics and Astronomy, Thin Films and Photonics Research Group (GCMP), Universite de Moncton, Moncton, New Brunswick E1A 3E9 (Canada)

Molybdenum trioxide (MoO{sub 3}) patterned at the nanometer scale is combined with the same material in its bulk form to produce Bragg mirrors with enhanced photoactive properties. MoO{sub 3} undergoes coloration with exposure to UV light but a multilayer structure which alternates between nanostructured and bulk MoO{sub 3} is 2.5 times more effective. Measurements with various multilayer arrangements suggest the proximity of bulk and nanostructured MoO{sub 3} favors the photoreaction with structural water. A possible minor contribution from electronic band shifting is also discussed.

• OSTI ID: 21464530
• Journal Information: Applied Physics Letters, Vol. 97, Issue 16; Other Information: DOI: 10.1063/1.3502480; (c) 2010 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
36 MATERIALS SCIENCE
COLORATION
ELECTRONIC STRUCTURE
FABRICATION
LAYERS
MIRRORS
MOLYBDENUM OXIDES
NANOSTRUCTURES
PHOTOCHEMISTRY
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTRA
WATER
CHALCOGENIDES
CHEMISTRY
ELECTROMAGNETIC RADIATION
HYDROGEN COMPOUNDS
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
REFRACTORY METAL COMPOUNDS
SPECTRA
TRANSITION ELEMENT COMPOUNDS