Cross-sectional transmission electron microscopy and optical characterization of gold nanoislands

Gaurav Gupta; Yoshiko Nakayama; Kazuo Furuya; Kazutaka Mitsuishi; Masayuki Shimojo; Kotaro Kajikawa

doi:10.1143/JJAP.48.080207

Cross-sectional transmission electron microscopy and optical characterization of gold nanoislands

Gaurav Gupta, Yoshiko Nakayama, Kazuo Furuya, Kazutaka Mitsuishi, Masayuki Shimojo, Kotaro Kajikawa

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

In this paper, we present the cross-sectional transmission electron microscope images of gold nanoislands formed by annealing ultrathin gold films to correctly determine the nanoisland three-dimensional shapes. The samples studied were 5 and 7 nm gold films deposited on quartz and annealed at 500 and 900°C. The cross-sectional view of the gold nanoislands confirmed that they appear to be like truncated spheres and not like the usually assumed spheroids. The shape of the nanoislands varied from spherical to hemispherical under different sample fabrication conditions. These shapes are consistent with the results predicted by polarized absorption spectroscopy.

Original language	English
Pages (from-to)	802071-802072
Number of pages	2
Journal	Japanese Journal of Applied Physics
Volume	48
Issue number	8 Part 1
DOIs	https://doi.org/10.1143/JJAP.48.080207
Publication status	Published - 2009 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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AU - Furuya, Kazuo

AU - Mitsuishi, Kazutaka

AU - Shimojo, Masayuki

AU - Kajikawa, Kotaro

PY - 2009/12/1

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AB - In this paper, we present the cross-sectional transmission electron microscope images of gold nanoislands formed by annealing ultrathin gold films to correctly determine the nanoisland three-dimensional shapes. The samples studied were 5 and 7 nm gold films deposited on quartz and annealed at 500 and 900°C. The cross-sectional view of the gold nanoislands confirmed that they appear to be like truncated spheres and not like the usually assumed spheroids. The shape of the nanoislands varied from spherical to hemispherical under different sample fabrication conditions. These shapes are consistent with the results predicted by polarized absorption spectroscopy.

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Cross-sectional transmission electron microscopy and optical characterization of gold nanoislands

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