e-journal

Tailoring Plasmon Resonances in Aluminium Nanoparticle Arrays Fabricated Using Anodic Aluminium Oxide

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Aluminium (Al) nanoparticles (NPs) over a 1.2-cm 2 -size area are fabricated using nanoporous anodic aluminium oxide as shadow masks. With this technique, plasmon response of Al NP arrays with different out-of-plane height is investigated. The dipolar-localized surface plasmon resonances (LSPRs) peak of Al NP arrays is blueshifted and then redshifted slightly with an increase in particle height because of interparticle interactions. Moreover,a novel method is demonstrated to reduce the size of Al particle via removing the oxide shell by wet chemical etching and taking advantage of the rapid oxidization of the metal core upon exposure to atmosphere. Three kinds of acid solutions (mixture of H 3 PO 4 and H 2 CrO 4 , H 3 PO 4 , and H 2 SO 4 ) are demonstrated as effective etchants. By adjusting the etching conditions, the blueshift of LSPRs can be controlled precisely. Dipolar LSPR is obtained at
wavelength down to 234 nm (5.3 eV), among the shortest ones ever observed in patterned Al NP arrays.

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Informasi Detail

Judul Seri

Adv. Optical Mater.

No. Panggil

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Penerbit

: WILEY–VCH Verlag GmbH & Co. KGaA., 2015

Deskripsi Fisik

Adv. Optical Mater. 2015, 3, 248–256

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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