Results 61 to 70 of about 3,401 (147)

d‐Orbital Electron Spin Polarization Field Inhibits Photo‐Generated Carrier Recombination for Panel Photoelectrocatalysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A solution‐processable sub‐nanocrystal of metal coordinated conjugated reticular oligomer with spin polarization functionality is employed as an active layer in planar photoelectrochemical water splitting. The rapid recombination of photo‐generated carriers remains a critical challenge limiting the photo‐electrocatalytic water splitting performance in ...
Ruijuan Zhang   +6 more
wiley   +1 more source

A method for measuring photopyroelectric spectra of dyes in a polymer pyroelectric matrix

open access: yesArchives of Acoustics, 2014
A method for measuring pyroelectric spectra of a dye admixed to a pyroelectric matrix has been described. Spectra obtained in the visible range by photopyroelectric and photoacoustic methods have been compared for rhodamine B in the pyroelectric PVDF ...
S. ŁĘTOWSKI, A. SIKORSKA
doaj  

Transparent and Photovoltaic Water–Semiconductor Interface for Ultra‐Low‐Light Omnidirectional Photodetection

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A self‐powered photodetector using a static water–ZnO interface forms a Schottky‐like photovoltaic junction for ultra‐low‐light sensing. It delivers strong photoresponse, 360° detection, and flexibility, advancing transparent and sustainable water‐based optoelectronics.
Sanh Vo Thi   +7 more
wiley   +1 more source

Overcoming spectral limits of perovskite photodetectors for the infrared region

open access: yesInfoScience, EarlyView.
Infrared (IR) photodetectors are vital for modern optoelectronics, but traditional inorganic semiconductors face limitations in cost, processing, and bandgap tunability. This review provides a summary of advanced strategies to extend metal halide perovskites into the IR region, categorizing approaches into intrinsic material engineering, physical ...
Jiean Li   +4 more
wiley   +1 more source

Zinc oxide/polydimethylsiloxane‐coated carbon fiber yarns for machine‐learning‐assisted gait classification

open access: yesInfoScience, EarlyView.
Gait analysis can provide valuable information for identifying changes in movement associated with neurological disorders, thus serving as an important support tool in several areas, including healthcare and rehabilitation. In this study, zinc oxide/polydimethylsiloxane (ZnO/PDMS)‐coated carbon fiber yarns were developed and evaluated as pressure ...
Maria Morais   +10 more
wiley   +1 more source

Investigation of the laser fluence and wavelength dependence in surface‐assisted laser desorption/ionization mass spectrometry using gold nanoparticles

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
Rationale Surface‐assisted laser desorption/ionization (SALDI) mass spectrometry (MS) builds on the use of nanostructured surfaces (e.g., coatings of colloidal nanoparticles) to promote analyte desorption and ionization. The SALDI process is believed to occur mainly through thermal processes, resulting from heating of the nanosubstrate upon absorption ...
Wendy H. Müller   +3 more
wiley   +1 more source

Responsive nanoheterojunctions for built‐in electric field‐promoted cascade tumor targeting and cuproptosis‐based therapy

open access: yesResponsive Materials, EarlyView.
Nanoheterojunctions have been synthesized as responsive biomaterials for cascade targeting of tumor cells and mitochondria, ROS‐mediated apoptosis and Cu‐promoted cuproptosis. And drug‐device‐field integration as an advanced paradigm of tumor treatment was employed for photo‐triggered tumor cell elimination in vitro and lesion eradication in vivo ...
Zhe Liu   +3 more
wiley   +1 more source

Carbon-based sprayed electrodes for pyroelectric applications.

open access: yesPLoS ONE, 2019
A carbon-based layer was deposited by spraying on top of a ferroelectric layer grown by sol-gel on Si (001) substrate and its properties as electrode and absorber for pyroelectric detection were tested.
C Chirila   +9 more
doaj   +1 more source

Temperature Field Analysis for PZT Pyroelectric Cells for Thermal Energy Harvesting

open access: yesSensors, 2011
This paper proposes the idea of etching PZT to improve the temperature variation rate of a thicker PZT sheet in order to enhance the energy conversion efficiency when used as pyroelectric cells.
Chi-Yuan Lee   +3 more
doaj   +1 more source

Mesophase Tunable Actuation of Ionic Thiol‐Acrylate Liquid Crystal Elastomers

open access: yesSmall, EarlyView.
Thiol‐acrylate ionic liquid crystal elastomers (iLCE) are developed with nematic and cybotactic mesophases and polydomain and monodomain genesis. The effect of genesis, mesophase, and microstructure on electroactuation was studied. ABSTRACT Electroactive polymers (EAPs) are envisioned to play a crucial role in next‐generation soft robotics for their ...
Yasaman Maddah   +7 more
wiley   +1 more source

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