Mechanical Control of Graphene on Engineered Pyramidal Strain Arrays

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mechanical Control of Graphene on Engineered Pyramidal Strain Arrays.

Strain can tune desirable electronic behavior in graphene, but there has been limited progress in controlling strain in graphene devices. In this paper, we study the mechanical response of graphene on substrates patterned with arrays of mesoscale pyramids. Using atomic force microscopy, we demonstrate that the morphology of graphene can be controlled from conformal to suspended depending on the...

متن کامل

Layer-resolved graphene transfer via engineered strain layers.

The performance of optimized graphene devices is ultimately determined by the quality of the graphene itself. Graphene grown on copper foils is often wrinkled, and the orientation of the graphene cannot be controlled. Graphene grown on SiC(0001) via the decomposition of the surface has a single orientation, but its thickness cannot be easily limited to one layer. We describe a method in which a...

متن کامل

Atomic control of strain in freestanding graphene

P. Xu,1 Yurong Yang,1,2 S. D. Barber,1 M. L. Ackerman,1 J. K. Schoelz,1 D. Qi,1 Igor A. Kornev,3 Lifeng Dong,4,5 L. Bellaiche,1 Salvador Barraza-Lopez,1 and P. M. Thibado1,* 1Department of Physics, The University of Arkansas, Fayetteville, Arkansas 72701, USA 2Physics Department, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China 3Ecole Centrale Paris, CNRS-UMR8580, Grand...

متن کامل

Optical separation of mechanical strain from charge doping in graphene.

Because of its superior stretchability, graphene exhibits rich structural deformation behaviours and its strain engineering has proven useful in modifying its electronic and magnetic properties. Despite the strain-sensitivity of the Raman G and 2D modes, the optical characterization of the native strain in graphene on silica substrates has been hampered by excess charges interfering with both m...

متن کامل

Uniaxial Drawing of Graphene-PVA Nanocomposites: Improvement in Mechanical Characteristics via Strain-Induced Exfoliation of Graphene

Polyvinyl alcohol (PVA)-stabilized graphene nanosheets (GNS) of lateral dimension (L) ~1 μm are obtained via liquid phase exfoliation technique to prepare its composites in the PVA matrix. These composites show low levels of reinforcements due to poor alignment of GNS within the matrix as predicted by the modified Halpin-Tsai model. Drawing these composites up to 200 % strain, a significant imp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: ACS Nano

سال: 2015

ISSN: 1936-0851,1936-086X

DOI: 10.1021/acsnano.5b00335