Enhanced band gap emission and ferromagnetism of Au nanoparticle decorated α-Fe2O3 nanowires due to surface plasmon and interfacial effects

Gobinda Gopal Khan; Debasish Sarkar; Ashutosh K. Singh; Kalyan Mandal

doi:10.1039/C2RA22578F

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Enhanced band gap emission and ferromagnetism of Au nanoparticle decorated α-Fe₂O₃nanowires due to surface plasmon and interfacial effects

Gobinda Gopal Khan,†*^a Debasish Sarkar,†^a Ashutosh K. Singh^a and Kalyan Mandal^a

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* Corresponding authors

^a Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Salt Lake City, Kolkata 700 098, India
E-mail: gobinda.gk@gmail.com, gobinda@bose.res.in
Fax: +91 033 2335 3477
Tel: +91 033 2335 5706-8

Abstract

Au nanoparticle decorated α-Fe₂O₃ NWs exhibit enhanced band gap luminescence due to coupling between excitons in α-Fe₂O₃ NWs and the surface plasmons of Au particles. The enhanced magnetization in α-Fe₂O₃ NWs with Au coating is attributed to the interfacial effects arising from the trapped metallic electrons at the Au/α-Fe₂O₃ NWs interface.

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Article information

DOI: https://doi.org/10.1039/C2RA22578F
Article type: Communication
Submitted: 24 Aug 2012
Accepted: 05 Dec 2012
First published: 07 Dec 2012

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RSC Adv., 2013,3, 1722-1727

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Enhanced band gap emission and ferromagnetism of Au nanoparticle decorated α-Fe₂O₃ nanowires due to surface plasmon and interfacial effects

G. G. Khan, D. Sarkar, A. K. Singh and K. Mandal, RSC Adv., 2013, 3, 1722 DOI: 10.1039/C2RA22578F

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