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...
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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 |
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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 |
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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. |
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School of Materials Science & Engineering |
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School of Materials Science & Engineering Cai, Guafa Wang, Jiangxin Eh, Alice Lee-Sie Chen, Jingwei Qian, Kai Xiong, Jiaqing Thangavel, Gurunathan Lee, Pooi-See |
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Article |
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Cai, Guafa Wang, Jiangxin Eh, Alice Lee-Sie Chen, Jingwei Qian, Kai Xiong, Jiaqing Thangavel, Gurunathan Lee, Pooi-See |
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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 |
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1773551313968168960 |