Results 91 to 100 of about 1,125,951 (330)

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk   +5 more
wiley   +1 more source

Cleaning interfaces in layered materials heterostructures

open access: yesNature Communications, 2018
Atomically-clean interfaces are required in heterostructures. Here, authors report a method for fast and parallel removal of contaminants from fully-formed heterostructures, including sample intentionally exposed to polymers and solvent, achieving room ...
D. G. Purdie   +5 more
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

Terahertz saturable absorbers from liquid phase exfoliation of graphite

open access: yesNature Communications, 2017
Graphene shows promise for saturable absorption, a key property for ultrafast lasing, yet graphene saturable absorbers operating in the terahertz region suffer from low absorption modulation.
Vezio Bianchi   +13 more
doaj   +1 more source

Morphology and flexibility of graphene and few-layer graphene on various substrates

open access: yes, 2008
We report on detailed microscopy studies of graphene and few-layer-graphene produced by mechanical exfoliation on various semi-conducting substrates. We demonstrate the possibility to prepare and analyze graphene on (001)-GaAs, manganese p-doped (001 ...
D. Weiss   +5 more
core   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Non-chiral one-dimensional states inside AB/BA domain walls in bilayer graphene

open access: yesAcademia Nano
Boundaries between structural twins of bilayer graphene (so-called AB/BA domain walls (DWs)) are often discussed regarding the formation of topologically protected valley-polarized chiral states.
Christian Moulsdale   +3 more
doaj   +1 more source

The hot pick-up technique for batch assembly of van der Waals heterostructures

open access: yesNature Communications, 2016
The reliable assembly of two-dimensional materials into van der Waals heterostructures is a critical step towards nanoscale electronic integration. Here the authors present a technique for batch fabrication of graphene/boron nitride stacks with clean ...
Filippo Pizzocchero   +7 more
doaj   +1 more source

Microstructure and Mechanical Properties of Graphene Oxide/Copper Composites

open access: yesCailiao gongcheng, 2016
Graphene oxide/copper (GO/Cu) composites were successfully synthesized through the ball milling and vacuum hot press sintering process. The morphologies of the mixture powders, and the microstructure and mechanical properties of GO/Cu composites were ...
HONG Qi-hu   +4 more
doaj   +1 more source

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