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Fabrication of Silver Nano-Hole Pattern with Different Hole Sizes by Thermal Transfer Printing

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The surface plasmon effect occurs in the silver nano-hole films; however, it is hard to make large-area patterns for use in optoelectronic devices. The aim of our research was to fabricate Ag nano-hole patterns in a relatively large area with a cost effective method, called thermal transfer printing. Thermal transfer printing is combined with colloidal lithography and soft lithography to fabricate two-dimensional hexagonal arrays of colloidal particles without an interlayer between polymeric colloidal particles and the target substrate. First, three-dimensional colloidal crystals consisting of polystyrene colloidal particles with diameters of 270 nm, 370 nm, and 480 nm were prepared. Next, a top layer of colloidal crystals, which had been pre-etched by oxygen plasma treatments, was transferred to a properly heated glass substrate using a polydimethylsiloxane stamp. Thus, Ag nano-hole patterns could be obtained after the metal layer was deposited and the colloidal particles were removed from the film. The hole diameter was easily controlled by O2 plasma etching. The Ag nano-hole patterns absorb half of the visible light in the region between 541 nm and 725 nm. It can be immediately applied in optoelectronic devices.
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Keywords: Silver Nano-Hole Pattern; Surface Plasmon Resonance; Thermal Transfer Printing

Document Type: Research Article

Affiliations: 1: Department of Chemical and Biomolecular Engineering (BK21 + Graduate Program), KAIST, 291 Daehakro, Yuseong-gu, Daejeon 34141, Republic of Korea 2: Division of Advanced Materials Engineering, Kongju National University, Cheonan, 31080, Republic of Korea

Publication date: August 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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