Dual-Mode Stretchable Emitter with Programmable Emissivity and Air Permeability DOI

Yinhyui Joo,

Dongkyun Kang,

Myeongkyu Lee

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(45), P. 63010 - 63018

Published: Nov. 5, 2024

Materials with anisotropic emission characteristics have attracted considerable attention for thermal management. Although many dual-mode emitters been developed this purpose in the form of textiles, multilayer films, and photonic structures, multiple functionalities are essential their versatile applications. Herein, a highly stretchable emitter programmable emissivity air permeability is presented. The comprises planar Ge2Sb2Te5 (GST) cavity on one side perforated elastomer substrate an infrared-reflecting metal layer other side. With laser-induced phase transition from amorphous to crystalline GST, exhibits large difference 0.52 between both sides. remains stable without mechanical failure after repeated stretching cycles strain 50%. This air-permeable can be attached any curved surface, including human body. GST-side programmed into arbitrary pattern using spatially modulated laser beam, ultimately enabling printing mutually independent visible images single emitter. study provides promising structure multispectral optical security as well

Language: Английский

A tunable encoder with circular dichroism and polarization encoding function based on a layered metastructure in the GHz range DOI Creative Commons

Chuanqi Wu,

Jun-Yang Sui, Qi Chen

et al.

Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113636 - 113636

Published: Jan. 1, 2025

Language: Английский

Citations

2
Polarization-Sensitive Long-Wavelength Infrared Narrowband Thermal Emitter for Anticounterfeiting DOI
Zhengji Wen, Xuan Zhang, Pengfei Wang

et al.

ACS Applied Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Tailoring the wavelength, bandwidth, directionality, and polarization of thermal radiation is critical for various applications like infrared camouflage, radiative cooling, gas sensing. In this work, we present a deep-subwavelength bilayer structure that serves as long-wavelength (LWIR) narrow-band emitter with selectivity. The proposed LWIR basically consists tungsten oxide (WO3) polar dielectric layer upon an opaque gold (Au) ground plane. Transfer matrix method (TMM) calculations are employed to analytically investigate optical responses emitter. Leveraging Berreman mode near longitudinal (LO) phonon energy WO3, experimentally realizes high absorption (97.6%) TM-polarized state low (4.2%) TE-polarized (at incident angle 60° wavelength 10.12 μm), which shows good agreement theoretical results. Such excellent polarization-sensitive performance makes our very promising security features, information encryption, anticounterfeiting.

Language: Английский

Citations

0
A novel magnetorheological-polyethylene glycol shear thickening gel based on enhanced gel matrix DOI
Maohuı Ge, Chengbin Du, Hanyan Wang

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 679, P. 161292 - 161292

Published: Sept. 20, 2024

Language: Английский

Citations

0
High-quality VO2 thin films sputter-deposited on borosilicate glass substrates for modulating solar transmission and thermal emission DOI

Dongkyun Kang,

Jaehyeong Kim,

Myeongkyu Lee

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 176793 - 176793

Published: Sept. 1, 2024

Language: Английский

Citations

0
Dual-Mode Stretchable Emitter with Programmable Emissivity and Air Permeability DOI

Yinhyui Joo,

Dongkyun Kang,

Myeongkyu Lee

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(45), P. 63010 - 63018

Published: Nov. 5, 2024

Materials with anisotropic emission characteristics have attracted considerable attention for thermal management. Although many dual-mode emitters been developed this purpose in the form of textiles, multilayer films, and photonic structures, multiple functionalities are essential their versatile applications. Herein, a highly stretchable emitter programmable emissivity air permeability is presented. The comprises planar Ge2Sb2Te5 (GST) cavity on one side perforated elastomer substrate an infrared-reflecting metal layer other side. With laser-induced phase transition from amorphous to crystalline GST, exhibits large difference 0.52 between both sides. remains stable without mechanical failure after repeated stretching cycles strain 50%. This air-permeable can be attached any curved surface, including human body. GST-side programmed into arbitrary pattern using spatially modulated laser beam, ultimately enabling printing mutually independent visible images single emitter. study provides promising structure multispectral optical security as well

Language: Английский

Citations

0