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Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition

Title
Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition
Authors
Yoo, Young JinLee, Gil JuJang, Kyung InSong, Young Min
DGIST Authors
Jang, Kyung In
Issue Date
2017-08
Citation
Jove-Journal of Visualized Experiments(126)
Type
Article
Article Type
Article
Keywords
ColorationElectronics and Electrical EngineeringEngineeringHighly Absorbent MediaIssue 126Oblique Angle DepositionOptical CoatingOptoelectronics (Applications)Thin-FilmUltra-Thin
ISSN
1940-087X
Abstract
Ultra-thin film structures have been studied extensively for use as optical coatings, but performance and fabrication challenges remain. We present an advanced method for fabricating ultra-thin color films with improved characteristics. The proposed process addresses several fabrication issues, including large area processing. Specifically, the protocol describes a process for fabricating ultra-thin color films using an electron beam evaporator for oblique angle deposition of germanium (Ge) and gold (Au) on silicon (Si) substrates. Film porosity produced by the oblique angle deposition induces color changes in the ultra-thin film. The degree of color change depends on factors such as deposition angle and film thickness. Fabricated samples of the ultra-thin color films showed improved color tunability and color purity. In addition, the measured reflectance of the fabricated samples was converted into chromatic values and analyzed in terms of color. Our ultra-thin film fabricating method is expected to be used for various ultra-thin film applications such as flexible color electrodes, thin film solar cells, and optical filters. Also, the process developed here for analyzing the color of the fabricated samples is broadly useful for studying various color structures.
URI
http://hdl.handle.net/20.500.11750/4805
DOI
10.3791/56383
Publisher
MYJoVE Corporation
Related Researcher
  • Author Jang, Kyung-In Bio-embedded Electronics Lab
  • Research Interests Extreme mechanics; Stand-alone electronics; Heterogeneous materials; Biocompatible interfaces
Files:
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Collection:
Department of Robotics EngineeringBio-embedded Electronics Lab1. Journal Articles


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