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RESEARCH PRODUCT
Optical Forging of Graphene into Three-Dimensional Shapes
Jukka AumanenVesa-matti HiltunenAndreas JohanssonJuha KoivistoinenHung Chieh TsaiJyrki ManninenLo-yueh ChangWei Yen WoonPasi MyllyperkiöChia Hao ChenPekka KoskinenMika Petterssonsubject
Materials scienceBioengineeringNanotechnology02 engineering and technology01 natural sciencesForginglaw.inventionStrain engineeringForgelaw0103 physical sciencesgrafeeniGeneral Materials ScienceHammer010306 general physicsta116Nanoscopic scalenanoscale devicesta114GrapheneMechanical EngineeringgrapheneGeneral ChemistryThin sheet021001 nanoscience & nanotechnologyCondensed Matter Physics3d shapesEngineering physicsoptical forging0210 nano-technologydescription
Atomically thin materials, such as graphene, are the ultimate building blocks for nanoscale devices. But although their synthesis and handling today are routine, all efforts thus far have been restricted to flat natural geometries, since the means to control their three-dimensional (3D) morphology has remained elusive. Here we show that, just as a blacksmith uses a hammer to forge a metal sheet into 3D shapes, a pulsed laser beam can forge a graphene sheet into controlled 3D shapes in the nanoscale. The forging mechanism is based on laser-induced local expansion of graphene, as confirmed by computer simulations using thin sheet elasticity theory. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 | Nano Letters |