Metal Slot Color Filter Based on Thin Air Slots on Silver Block Array
- Authors
- Kim, Youngsoo; Moon, Kihwan; Lee, Young Jin; Hong, Seokhyeon; Kwon, Soon-Hong
- Issue Date
- Jun-2019
- Publisher
- MDPI
- Keywords
- color filter; metal block; air slots; slot transmission
- Citation
- NANOMATERIALS, v.9, no.6
- Journal Title
- NANOMATERIALS
- Volume
- 9
- Number
- 6
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/36455
- DOI
- 10.3390/nano9060912
- ISSN
- 2079-4991
2079-4991
- Abstract
- The human eye perceives the color of visible light depending on the spectrum of the incident light. Hence, the ability of color expression is very important in display devices. For practical applications, the transmitted color filter requires high transmittance and vivid colors, covering full standard default color spaces (sRGB). In this paper, we propose a color filter with a silver block array on a silica substrate structure with nanoscale air slots where strong transmission is observed through the slots between silver blocks. We investigated the transmitted color by simulating the transmission spectra as functions of various structure parameters. The proposed structure with an extremely small pixel size of less than 300 nm covers 90% of sRGB color depending on the structure and has a narrow angular distribution of transmitted light.
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- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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