Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region

Some animals and plants in nature are endowed with elegant color-changing ability, which inspired the developments of biomimetic systems with multifunctionality, such as controllable colors, transmittance, and mechanical pliability that are significant for the development of energy-efficient and def...

Full description

Saved in:
Bibliographic Details
Main Authors: Cai, Guafa, Wang, Jiangxin, Eh, Alice Lee-Sie, Chen, Jingwei, Qian, Kai, Xiong, Jiaqing, Thangavel, Gurunathan, Lee, Pooi-See
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/138783
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-138783
record_format dspace
spelling sg-ntu-dr.10356-1387832023-07-14T16:02:08Z Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region Cai, Guafa Wang, Jiangxin Eh, Alice Lee-Sie Chen, Jingwei Qian, Kai Xiong, Jiaqing Thangavel, Gurunathan Lee, Pooi-See School of Materials Science & Engineering Science::Chemistry Stretchable Hydrochromic Device Porous Poly(dimethylsiloxane) Film Some animals and plants in nature are endowed with elegant color-changing ability, which inspired the developments of biomimetic systems with multifunctionality, such as controllable colors, transmittance, and mechanical pliability that are significant for the development of energy-efficient and deformable chromic devices, such as wearable displays, smart windows, decorative architectures, camouflage devices, etc. Inspired by the color-changing ability of diphylleia grayi (commonly known as skeleton flower), we developed a porous PDMS film that dynamically and dramatically changes its color by the adsorption/desorption of minute amount of water (5 g m-2) or other solvents. This hydrochromic phenomenon was analyzed in detail and it matched well with the Mie scattering theory. The porous PDMS film of about 0.4 mm thick exhibits a large optical modulation (about 75~80%) in the broad visible and near infrared region and coloration speed of less than 9 mins. Additionally, the PDMS film can sustain uniaxial strain up to 100% at both transparent and colored states. We believe this new strategy to develop highly scalable porous PDMS film offers a practical route to realize bionic and botanic inspired deformable energy-efficient façade, chromogenic wearables, smart window, smart display, and camouflage etc. NRF (Natl Research Foundation, S’pore) Accepted version 2020-05-12T09:21:13Z 2020-05-12T09:21:13Z 2018 Journal Article Cai, G., Wang, J., Eh, A. L.-S., Chen, J., Qian, K., Xiong, J., . . ., Lee, P.-S. (2018). Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region. ACS Applied Materials & Interfaces, 10(43), 37685-37693. doi:10.1021/acsami.8b12490 1944-8244 https://hdl.handle.net/10356/138783 10.1021/acsami.8b12490 43 10 37685 37693 en ACS Applied Materials & Interfaces This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.8b12490. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Chemistry
Stretchable Hydrochromic Device
Porous Poly(dimethylsiloxane) Film
spellingShingle Science::Chemistry
Stretchable Hydrochromic Device
Porous Poly(dimethylsiloxane) Film
Cai, Guafa
Wang, Jiangxin
Eh, Alice Lee-Sie
Chen, Jingwei
Qian, Kai
Xiong, Jiaqing
Thangavel, Gurunathan
Lee, Pooi-See
Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
description Some animals and plants in nature are endowed with elegant color-changing ability, which inspired the developments of biomimetic systems with multifunctionality, such as controllable colors, transmittance, and mechanical pliability that are significant for the development of energy-efficient and deformable chromic devices, such as wearable displays, smart windows, decorative architectures, camouflage devices, etc. Inspired by the color-changing ability of diphylleia grayi (commonly known as skeleton flower), we developed a porous PDMS film that dynamically and dramatically changes its color by the adsorption/desorption of minute amount of water (5 g m-2) or other solvents. This hydrochromic phenomenon was analyzed in detail and it matched well with the Mie scattering theory. The porous PDMS film of about 0.4 mm thick exhibits a large optical modulation (about 75~80%) in the broad visible and near infrared region and coloration speed of less than 9 mins. Additionally, the PDMS film can sustain uniaxial strain up to 100% at both transparent and colored states. We believe this new strategy to develop highly scalable porous PDMS film offers a practical route to realize bionic and botanic inspired deformable energy-efficient façade, chromogenic wearables, smart window, smart display, and camouflage etc.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Cai, Guafa
Wang, Jiangxin
Eh, Alice Lee-Sie
Chen, Jingwei
Qian, Kai
Xiong, Jiaqing
Thangavel, Gurunathan
Lee, Pooi-See
format Article
author Cai, Guafa
Wang, Jiangxin
Eh, Alice Lee-Sie
Chen, Jingwei
Qian, Kai
Xiong, Jiaqing
Thangavel, Gurunathan
Lee, Pooi-See
author_sort Cai, Guafa
title Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
title_short Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
title_full Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
title_fullStr Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
title_full_unstemmed Diphylleia grayi inspired stretchable hydrochromics with large optical Modulation in visible-near infrared region
title_sort diphylleia grayi inspired stretchable hydrochromics with large optical modulation in visible-near infrared region
publishDate 2020
url https://hdl.handle.net/10356/138783
_version_ 1773551313968168960