Results 101 to 110 of about 2,529,892 (293)

Fiber‐Based Wearable Electronics as Adaptive Biointerfaces for Healthcare Applications

open access: yesAdvanced Functional Materials, EarlyView.
Fiber‐based wearable electronics have been extensively studied as adaptive healthcare biointerfaces. In this review, we classify and introduce fiber‐based systems according to biointerface design, conductive materials, transduction mechanisms, and healthcare applications, and provide a perspective on their translation toward reliable, continuous ...
Sangwoo Hong   +5 more
wiley   +1 more source

Optical image processing using the photoinduced anisotropy of pyrrylfulgide

open access: yes, 2006
A synthesized photochromic compound-pyrrylfulgide-is prepared as a thin film doped in a polymethylmethacrylate (PMMA) matrix. Under irradiation by UV light, the film converts from the bleached state into a colored state that has a maximum absorption at ...
Chen, GF   +9 more
core  

On the origin of bulk-related anisotropies in surface optical spectra

open access: yesCommunications Materials
Reflection anisotropy spectroscopy is widely used to probe the optical properties of surfaces, yet the origin of the ’bulk-related’ features has been debated for decades.
Max Großmann   +6 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Resolving the optical anisotropy of low-symmetry 2D materials

open access: yes, 2018
Azimuthal-dependence reflectance difference microscopy was developed to visualize and characterize the optical anisotropy of low-symmetry 2D materials.
Chunhua An   +13 more
core   +1 more source

Tuning refractive indices in nematic liquid crystal via nanoparticles coupling

open access: yesScientific Reports
Liquid Crystals (LCs), with their exclusive ability to combine fluidity and optical anisotropy, continue to play a pivotal role in designing and developing future generations of novel and efficient photonic and electro-optic materials.
Maryam Beigmohammadi   +2 more
doaj   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh   +4 more
wiley   +1 more source

Optical anisotropy of synthetic opals

open access: yes, 2011
Optical anisotropy of synthetic opals has been investigated by measuring the spectral dependence of polarized transmitted light at normal and oblique light incidence at various sample azimuth orientations.
López, Cefe   +14 more
core   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler   +3 more
wiley   +1 more source

Intracrystalline Void‐Mediated Toughening of Brittle Crystals in Quail Eggshells

open access: yesAdvanced Functional Materials, EarlyView.
In quail eggshells, the high density and disordered arrangement of intracrystalline voids inhibit lattice cleavage, suppress long‐range crack propagation, and promote deformation twinning and quasi‐plasticity, serving as an essential toughening motif. We show that these voids remain within a narrow subcritical size range and therefore predominantly do ...
Jingxiao Zhong   +16 more
wiley   +1 more source

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