Oxygen vacancy dominant strong visible photoluminescence from BiFeO3 nanotubes

In this Letter, we report oxygen vacancy dominant strong visible photoluminescence (PL) from multiferroic BiFeO3(BFO) nanotubes (NTs) prepared by sol–gel template method. Abundant oxygen vacancies present in BFO NTs provide alternate paths for the photo‐induced carrier generation and recombination t...

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Bibliographic Details
Published in:Physica status solidi. PSS-RRL. Rapid research letters 2013-09, Vol.7 (9), p.668-671
Main Authors: Miriyala, N., Prashanthi, K., Thundat, T.
Format: Article
Language:English
Subjects:
BiFeO3
bismuth ferrite
Luminescence
Nanotubes
Oxygen
photoluminescence
vacancies
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Summary:In this Letter, we report oxygen vacancy dominant strong visible photoluminescence (PL) from multiferroic BiFeO3(BFO) nanotubes (NTs) prepared by sol–gel template method. Abundant oxygen vacancies present in BFO NTs provide alternate paths for the photo‐induced carrier generation and recombination thus affecting the PL and photoabsorption characteristics. This study not only assists in understanding the optoelectronic characteristics of BFO NTs at nanoscale but also suggests BFO nanostructures as potential candidates for future photonic and sensing applications. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) In this Letter, the authors report oxygen vacancy dominant visible photoluminescence (PL) from multiferroic BiFeO3 (BFO) nanotubes (NTs) prepared by sol–gel template method. Though oxygen vacancies are insignificant and detrimental in bulk, they have profound importance in altering optoelectronic characteristics at the nanoscale because of high surface‐to‐volume ratio. This study not only assists in understanding the optoelectronic characteristics of BFO NTs at the nanoscale but also suggests BFO nanostructures as potential candidates for future photonic and sensing applications.
ISSN:1862-6254
1862-6270
DOI:10.1002/pssr.201308069