Generation of highly integrated multiple vivid colours using a three-dimensional broadband perfect absorber
- Authors
- Kim, Soo-Jung; Jung, Pil-Hoon; Kim, Wonjoong; Lee, Heon; Hong, Sung-Hoon
- Issue Date
- 16-10월-2019
- Publisher
- NATURE RESEARCH
- Citation
- SCIENTIFIC REPORTS, v.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 9
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/62498
- DOI
- 10.1038/s41598-019-49906-3
- ISSN
- 2045-2322
- Abstract
- The colour printing technology based on interactions between geometric structures and light has various advantages over the pigment-based colour technology in terms of nontoxicity and ultrasma II pixel size. The asymmetric Fabry-Perot (F-P) cavity absorber is the simplest light-interacting structure, which can easily represent and control the colour by the thickness of the dielectric layer. However, for practical applications, an advanced manufacturing technique for the simultaneous generation of multiple reflective colours is required. In this study, we demonstrate F-P cavity absorbers with micropixels by overcoming the difficulties of multi-level pattern fabrication using a nanoimprinting approach. Our asymmetric F-P cavity absorber exhibited a high absorption (approximately 99%) in a wide visible light range upon the incorporation of lossy metallic materials, yielding vivid colours. A high-resolution image of eight different reflective colours was obtained by a one-step process. This demonstrates the potential of this technology for device applications such as high-resolution colour displays and colour patterns used for security functions.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.