Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display

Dynamic structural color based on tunable optical resonance plays a key role in applications including encryption visualization, camouflage and colorimetric sensing. However, the current design requires either complex growth processes of the high-quality tunable materials or complicated circuit desi...

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Autores principales:	Zhang Jian, Wang Dandan, Ying Yunbin, Zhou Hao, Liu Xiaokai, Hu Xin, Chen Yingxin, Li Qiang, Zhang Xuefeng, Qiu Min
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	dynamic structural color grayscale exposure hydrogel microstructure multi-color display Physics QC1-999
Acceso en línea:	https://doaj.org/article/3007cee4a4e349f291eb7c300192ab22
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spelling	oai:doaj.org-article:3007cee4a4e349f291eb7c300192ab222021-12-05T14:10:56ZGrayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display2192-861410.1515/nanoph-2021-0413https://doaj.org/article/3007cee4a4e349f291eb7c300192ab222021-10-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0413https://doaj.org/toc/2192-8614Dynamic structural color based on tunable optical resonance plays a key role in applications including encryption visualization, camouflage and colorimetric sensing. However, the current design requires either complex growth processes of the high-quality tunable materials or complicated circuit designs. This work makes a humidity-swelling hydrogel layer for metal–insulator–metal (MIM) structure in the dynamic multi-color display. Here, polyvinyl alcohol (PVA) hydrogel structure is patterned through grayscale e-beam lithography and the controlled PVA thickness leads the programmable reflective resonance covering the entire visible range. By varying the ambient humidity between 9.8 and 90.1% RH, the reflective resonance of the structure is tailored across a wavelength range over 100 nm. Our materials platform of humidity-sensitive hydrogel resist presents a novel approach of the stepwise and reversible optical tunability for photonic devices.Zhang JianWang DandanYing YunbinZhou HaoLiu XiaokaiHu XinChen YingxinLi QiangZhang XuefengQiu MinDe Gruyterarticledynamic structural colorgrayscale exposurehydrogel microstructuremulti-color displayPhysicsQC1-999ENNanophotonics, Vol 10, Iss 16, Pp 4125-4131 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dynamic structural color grayscale exposure hydrogel microstructure multi-color display Physics QC1-999
spellingShingle	dynamic structural color grayscale exposure hydrogel microstructure multi-color display Physics QC1-999 Zhang Jian Wang Dandan Ying Yunbin Zhou Hao Liu Xiaokai Hu Xin Chen Yingxin Li Qiang Zhang Xuefeng Qiu Min Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
description	Dynamic structural color based on tunable optical resonance plays a key role in applications including encryption visualization, camouflage and colorimetric sensing. However, the current design requires either complex growth processes of the high-quality tunable materials or complicated circuit designs. This work makes a humidity-swelling hydrogel layer for metal–insulator–metal (MIM) structure in the dynamic multi-color display. Here, polyvinyl alcohol (PVA) hydrogel structure is patterned through grayscale e-beam lithography and the controlled PVA thickness leads the programmable reflective resonance covering the entire visible range. By varying the ambient humidity between 9.8 and 90.1% RH, the reflective resonance of the structure is tailored across a wavelength range over 100 nm. Our materials platform of humidity-sensitive hydrogel resist presents a novel approach of the stepwise and reversible optical tunability for photonic devices.
format	article
author	Zhang Jian Wang Dandan Ying Yunbin Zhou Hao Liu Xiaokai Hu Xin Chen Yingxin Li Qiang Zhang Xuefeng Qiu Min
author_facet	Zhang Jian Wang Dandan Ying Yunbin Zhou Hao Liu Xiaokai Hu Xin Chen Yingxin Li Qiang Zhang Xuefeng Qiu Min
author_sort	Zhang Jian
title	Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
title_short	Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
title_full	Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
title_fullStr	Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
title_full_unstemmed	Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
title_sort	grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/3007cee4a4e349f291eb7c300192ab22
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Grayscale-patterned metal-hydrogel-metal microscavity for dynamic multi-color display

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