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Electrical and Optical Properties of Self-Assembled, Ordered Gold Nanocrystal/Silica Thin Films Prepared by Sol-Gel Processing

  • Kai Yang (a1), Hongyou Fan (a2) (a3), Michael J. O'Brien (a1), Sima La Fontaine (a1), Gabriel P. Lopez (a2), Kevin J. Malloy (a1), C. Jeffrey Brinker (a2) (a4) and Thomas W. Sigmon (a1)...

Abstract

Highly ordered gold NC/silica films are synthesized by self-assembly of water-soluble gold nanocrystal micelles and soluble silica using a sol-gel spin-coating technique. The optical properties are analyzed using ellipsometry and ultraviolet-visible spectroscopy. The absorption spectra show a strong surface plasmon absorption band at ∼520 nm for all samples. Angular excitation spectra of the surface plasmon show a steep dip in the reflectivity curve at ∼65°. Charge transport behavior of the films is examined using metal-oxide-semiconductor (MOS) structures.MOS capacitor samples exhibit charge storage with discharge behavior dominated by electron transport within the gold NC arrays.

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Electrical and Optical Properties of Self-Assembled, Ordered Gold Nanocrystal/Silica Thin Films Prepared by Sol-Gel Processing

  • Kai Yang (a1), Hongyou Fan (a2) (a3), Michael J. O'Brien (a1), Sima La Fontaine (a1), Gabriel P. Lopez (a2), Kevin J. Malloy (a1), C. Jeffrey Brinker (a2) (a4) and Thomas W. Sigmon (a1)...

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