Multiresponsive Dielectric Metasurfaces Based on Dual Light‐and Temperature‐Responsive Copolymers

C Zou, P Poudel, SL Walden, K Tanaka… - Advanced Optical …, 2023 - Wiley Online Library
Tunability is essential for unlocking a range of practical applications of high‐efficiency
metasurface‐based nanophotonic devices and systems. Increased research efforts in this …

Reusable structural colored nanostructure for powerless temperature and humidity sensing

P Cencillo‐Abad, P Mastranzo‐Ortega… - Advanced Optical …, 2023 - Wiley Online Library
Nanostructured materials have enabled new ways of controlling the light–matter interaction,
opening new routes for exciting applications, in display technologies and colorimetric …

Combined X-ray Reflectivity and Infrared Study of the Effect of Hydrogen Bonding of the OH Group on the Relaxation Behavior in Ultrathin Polyvinylphenol Films on …

T Sharma, S Kashihara, Y Yamasaki… - The Journal of …, 2023 - ACS Publications
Utilizing X-ray reflectivity and infrared reflection absorption spectroscopy (IR-RAS), we have
investigated the thermal expansion and contraction of ultrathin polyvinylphenol (PVPh) films …

Thickness and Substrate Dependences of the Relaxation of Spin-Coated Polymethyl Methacrylate Ultrathin Films Supported on SiO2 and SiOH Substrates

T Sharma, M Konishi, K Sekiya, I Takahashi - Macromolecules, 2021 - ACS Publications
The relaxation of ultrathin polymethyl methacrylate (PMMA) films, which were spin-coated on
SiO2 and SiOH substrates, was examined with different film thicknesses. In the glassy state …

Recent progresses in nanometer scale analysis of buried layers and interfaces in thin films by X-rays and Neutrons

K Stoev, K Sakurai - Analytical Sciences, 2020 - jstage.jst.go.jp
In the early 1960s, scientists achieved the breakthroughs in the fields of solid surfaces and
artificial layered structures. The advancement of surface science has been supported by the …

Thickness Changes in Temperature-Responsive Poly(N-isopropylacrylamide) Ultrathin Films under Ambient Conditions

Y Liu, K Sakurai - ACS omega, 2019 - ACS Publications
In this paper, we report detailed experimental observations of unusual changes in the
thickness of solid poly (N-isopropylacrylamide)(PNIPAM) ultrathin films, which are well …

Slow dynamics in thermal expansion of polyvinyl acetate thin film with interface layer

Y Liu, K Sakurai - Polymer Journal, 2019 - nature.com
The experimental observation of an unusual thickness change in polyvinyl acetate (PVAc)
thin films during the temperature cycle across the glass transition temperature (T g,~ 31° C) …

Uniaxial negative thermal expansion of polyvinyl acetate thin film

Y Liu, K Sakurai - Langmuir, 2018 - ACS Publications
The present paper reports some experimental observations of reproducible uniaxial
negative thermal expansion (u-NTE) in an amorphous polyvinyl acetate (PVAc) ultrathin film …

Correlation of physical aging and glass transition temperatures in ultrathin polystyrene films supported on SiO2

T Sharma, Y Nishio, Y Tamano, H Sato, I Takahashi - Polymer, 2021 - Elsevier
This study examined the effects of the aging temperature (T age) on structural relaxation in
ultrathin-supported polystyrene (PS) films with thickness~ 0.2 Rg. X-ray reflectivity and …

Mechanism of thermal expansion in polymer ultrathin film

Y Liu - 日本表面真空学会学術講演会要旨集2019 年日本表面 …, 2019 - jstage.jst.go.jp
In addition to the normal thermal expansion in the materials system, which has been already
widely studied in the bulk system, some different mechanism might also exist in the …