Materials, Photonic Devices, and Sensors

Localized surface plasmon resonance in two-dimensional silver nanodot array fabricated using nanoporous alumina mask for chemical sensor platform

[+] Author Affiliations
Mi Jung

Chung-Ang University, Institute of Innovative Functional Imaging, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea

Myung-Gi Ji, Tae-Ryong Kim

Chung-Ang University, School of Electrical and Electronics Engineering, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea

Cheol-Hwee Shim

Korea Institute of Science and Technology, Advanced Analysis Center, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea

Seok Lee, Deokha Woo

Korea Institute of Science and Technology, Sensor System Research Center, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea

Young-Wan Choi

Chung-Ang University, Institute of Innovative Functional Imaging, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea

Chung-Ang University, School of Electrical and Electronics Engineering, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea

Opt. Eng. 55(8), 087107 (Aug 19, 2016). doi:10.1117/1.OE.55.8.087107
History: Received May 17, 2016; Accepted August 2, 2016
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Abstract.  Two-dimensional (2-D) metal nanodot arrays (NDAs) have been attracting significant attention for use in biological and chemical sensing applications. The unique optical properties of the metal NDAs originate from their localized surface plasmon resonance (LSPR). Nanofabrication methods that use nanoporous alumina masks (NAMs) have been widely used to produce metal NDAs. We report a fabrication technique for a 2-D Ag NDA and its utilization as a platform for LSPR-based sensing applications. A well-ordered Ag NDA of 70-nm diameter, arranged in a periodic pattern of 105 nm, was fabricated on an indium tin oxide (ITO) glass substrate using an NAM as an evaporation mask. The LSPR of the Ag NDA on the ITO glass was investigated using ultraviolet–visible spectroscopy. The LSPR wavelength shifts caused by the variations in the quantity of methylene blue adsorbed on the Ag NDA were examined. The results of this study suggest that the Ag NDA prepared using NAM can be used as a chemical sensor platform.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Mi Jung ; Myung-Gi Ji ; Tae-Ryong Kim ; Cheol-Hwee Shim ; Seok Lee, et al.
"Localized surface plasmon resonance in two-dimensional silver nanodot array fabricated using nanoporous alumina mask for chemical sensor platform", Opt. Eng. 55(8), 087107 (Aug 19, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.087107


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