Results 91 to 100 of about 185,261 (290)

Probing the Architecture of Organic Heterojunctions Based on Zn(Salen)‐Type/Lu(Bis‐phthalocyanine) Complexes and Their Potential Application as Gas Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Planar bilayer heterojunctions are fabricated from two molecular materials and compared to solution‐processed bulk heterojunctions. Raman spectroscopy and conductive AFM studies reveal the formation of conductive pillar‐like structures within a poorly conductive matrix.
Agostino Attinà   +6 more
wiley   +1 more source

Model for petahertz optical memory based on a manipulation of the optical-field-induced current in dielectrics

open access: yesNew Journal of Physics, 2018
A new physical insight into the ultrafast information communication can be gained from the reversible and robust petahertz (PHz, 10 ^15 Hz) current induced by a strong few-cycle optical waveform in large band-gap dielectrics.
J D Lee, Youngjae Kim, Chil-Min Kim
doaj   +1 more source

Band Alignment of Grafted Si/Ge0.89Sn0.11 Heterojunction Determined by X‐Ray Photoelectron Spectroscopy

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT We investigate the band alignment of a monocrystalline grafted p‐type Si/Ge0.89Sn0.11 heterostructure using X‐ray photoelectron spectroscopy (XPS). The bandgap of the Ge0.89Sn0.11 epilayer of 0.50 eV was first determined and cross‐verified using photoluminescence spectroscopy, infrared transmission, and theoretical calculation.
Yang Liu   +11 more
wiley   +1 more source

High power diode lasers. Introduction

open access: yes, 2022
S.1-3The motivation for writing this book is at least threefold: the extremely promising laser characteristics of high-power diode lasers; their vast application potential in production processes like welding, soldering, polymer joining, cutting, and ...
Poprawe, R.
core   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Recent Advances in Light‐Addressable Electrochemistry for Spatially Resolved Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This comprehensive review highlights light‐addressable electrochemistry as a powerful tool that uses light to control localized chemical reactions on unstructured semiconductor surfaces. The work evaluates advanced strategies to optimize electrode materials for enhanced spatial resolution and stability. Furthermore, it showcases diverse applications in
Nhi Trang Vo   +2 more
wiley   +1 more source

Three dimentional control of a diode based laser cutter [PDF]

open access: yes, 2014
Includes bibliographical referencesLaser cutting is a widely used technology in many areas of industry and research. Conventional laser cutters only offer control of two axes and either cut through a material or rudimentary control of the third dimension
Frost, Phillip John Lowne
core   +1 more source

Optimizing zinc concentration in spray -deposited zinc oxide (ZnO) thin films for enhanced properties and application in Cu2ZnSnS4/ZnO heterojunction device

open access: yesKuwait Journal of Science
This study investigates the synthesis and optimization of zinc oxide (ZnO) thin films through the cost-effective spray pyrolysis technique, utilizing varying molar concentrations of zinc acetate precursor.
Oluyemi F.O., Ogunmola E.D., Ajayi A.A.
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

open access: yesAdvanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong   +7 more
wiley   +1 more source

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

open access: yesAdvanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti   +3 more
wiley   +1 more source

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