Asymmetric Dichroic Colors in Stretchable Film with Embedded Au/Ag Alloy Nanoparticles

Sunghwan Jo; Ju Yeon Woo; Jun Ho Oh; Chang Woo Song; Hee Min Yang; Chang Soo Han

doi:10.1021/acsami.2c01767

Asymmetric Dichroic Colors in Stretchable Film with Embedded Au/Ag Alloy Nanoparticles

Sunghwan Jo, Ju Yeon Woo, Jun Ho Oh, Chang Woo Song, Hee Min Yang, Chang Soo Han

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We present a new type of stretchable dichroic film in which Au and Ag alloy nanoparticles (NPs) are dispersed in polydimethylsiloxane (PDMS). The alloy NPs are synthesized with different atomic compositions and sizes to modulate their plasmonic resonance frequencies and absorption and scattering cross sections. The PDMS dichroic film in which 100 nm alloy NPs with a Au/Ag ratio of 7:3 are dispersed shows exotic optical properties under tensile strain. When 40% tensile strain is applied, the film exhibits a strain-sensitive transmission and strain-insensitive reflection behavior in which the transmittance is increased up to 2.6 times, whereas the reflectance remains unchanged. Moreover, we demonstrate a stretchable anticounterfeiting film and a flexible dichroic sculpture fabricated with the PDMS composite. This work demonstrates a new type of plasmonic application that has great potential in various applications, such as special-purpose optical films, security patterns, and smart windows.

Original language	English
Pages (from-to)	23734-23742
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	14
Issue number	20
DOIs	https://doi.org/10.1021/acsami.2c01767
Publication status	Published - 2022 May 25

Keywords

alloy nanoparticle
dichroic color
Lycurgus Cup
stretchable optical film
stretchable plasmonics

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsami.2c01767

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title = "Asymmetric Dichroic Colors in Stretchable Film with Embedded Au/Ag Alloy Nanoparticles",

abstract = "We present a new type of stretchable dichroic film in which Au and Ag alloy nanoparticles (NPs) are dispersed in polydimethylsiloxane (PDMS). The alloy NPs are synthesized with different atomic compositions and sizes to modulate their plasmonic resonance frequencies and absorption and scattering cross sections. The PDMS dichroic film in which 100 nm alloy NPs with a Au/Ag ratio of 7:3 are dispersed shows exotic optical properties under tensile strain. When 40% tensile strain is applied, the film exhibits a strain-sensitive transmission and strain-insensitive reflection behavior in which the transmittance is increased up to 2.6 times, whereas the reflectance remains unchanged. Moreover, we demonstrate a stretchable anticounterfeiting film and a flexible dichroic sculpture fabricated with the PDMS composite. This work demonstrates a new type of plasmonic application that has great potential in various applications, such as special-purpose optical films, security patterns, and smart windows.",

keywords = "alloy nanoparticle, dichroic color, Lycurgus Cup, stretchable optical film, stretchable plasmonics",

author = "Sunghwan Jo and Woo, {Ju Yeon} and Oh, {Jun Ho} and Song, {Chang Woo} and Yang, {Hee Min} and Han, {Chang Soo}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (2021R1A2C1010039 and 2021R1A2B5B03001811). The authors acknowledge the service from the member of Multiscale Nature-inspired Mechanics Laboratory (MNML) and the measurement support of KBSI in Seoul. Publisher Copyright: {\textcopyright} 2022 American Chemical Society. All rights reserved.",

year = "2022",

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doi = "10.1021/acsami.2c01767",

language = "English",

volume = "14",

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T1 - Asymmetric Dichroic Colors in Stretchable Film with Embedded Au/Ag Alloy Nanoparticles

AU - Jo, Sunghwan

AU - Woo, Ju Yeon

AU - Oh, Jun Ho

AU - Song, Chang Woo

AU - Yang, Hee Min

AU - Han, Chang Soo

N1 - Funding Information: This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT) (2021R1A2C1010039 and 2021R1A2B5B03001811). The authors acknowledge the service from the member of Multiscale Nature-inspired Mechanics Laboratory (MNML) and the measurement support of KBSI in Seoul. Publisher Copyright: © 2022 American Chemical Society. All rights reserved.

PY - 2022/5/25

Y1 - 2022/5/25

N2 - We present a new type of stretchable dichroic film in which Au and Ag alloy nanoparticles (NPs) are dispersed in polydimethylsiloxane (PDMS). The alloy NPs are synthesized with different atomic compositions and sizes to modulate their plasmonic resonance frequencies and absorption and scattering cross sections. The PDMS dichroic film in which 100 nm alloy NPs with a Au/Ag ratio of 7:3 are dispersed shows exotic optical properties under tensile strain. When 40% tensile strain is applied, the film exhibits a strain-sensitive transmission and strain-insensitive reflection behavior in which the transmittance is increased up to 2.6 times, whereas the reflectance remains unchanged. Moreover, we demonstrate a stretchable anticounterfeiting film and a flexible dichroic sculpture fabricated with the PDMS composite. This work demonstrates a new type of plasmonic application that has great potential in various applications, such as special-purpose optical films, security patterns, and smart windows.

AB - We present a new type of stretchable dichroic film in which Au and Ag alloy nanoparticles (NPs) are dispersed in polydimethylsiloxane (PDMS). The alloy NPs are synthesized with different atomic compositions and sizes to modulate their plasmonic resonance frequencies and absorption and scattering cross sections. The PDMS dichroic film in which 100 nm alloy NPs with a Au/Ag ratio of 7:3 are dispersed shows exotic optical properties under tensile strain. When 40% tensile strain is applied, the film exhibits a strain-sensitive transmission and strain-insensitive reflection behavior in which the transmittance is increased up to 2.6 times, whereas the reflectance remains unchanged. Moreover, we demonstrate a stretchable anticounterfeiting film and a flexible dichroic sculpture fabricated with the PDMS composite. This work demonstrates a new type of plasmonic application that has great potential in various applications, such as special-purpose optical films, security patterns, and smart windows.

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KW - stretchable plasmonics

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ER -

Asymmetric Dichroic Colors in Stretchable Film with Embedded Au/Ag Alloy Nanoparticles

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Keywords

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