Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Robin W. Havener"'
Autor:
Li Yang, Jiwoong Park, Yufeng Liang, Lola Brown, Matt W. Graham, Hiral Patel, Robin W. Havener
Publikováno v:
Nano Letters. 15:5932-5937
When two sheets of graphene stack in a twisted bilayer graphene (tBLG) configuration, the resulting constrained overlap between interplanar 2p orbitals produce angle-tunable electronic absorption resonances. By applying a novel combination of multiph
Autor:
Lola Brown, Yui Ogawa, Maria C. Asensio, Mark Levendorf, Jiwoong Park, Dong-Ki Kim, Haofei I. Wei, Cheol-Joo Kim, Eric Monkman, Robin W. Havener, Daniel Shai, Kyle Shen, Edward Lochocki, José Avila
Publikováno v:
Nano Letters. 14:5706-5711
We report the scalable growth of aligned graphene and hexagonal boron nitride on commercial copper foils, where each film originates from multiple nucleations yet exhibits a single orientation. Thorough characterization of our graphene reveals unifor
Autor:
Cheol-Joo Kim, Paul L. McEuen, Joel D. Sleppy, Robin W. Havener, Lola Brown, Joshua W. Kevek, Jiwoong Park
Publikováno v:
Nano Letters. 13:3942-3946
Precise vertical stacking and lateral stitching of two-dimensional (2D) materials, such as graphene and hexagonal boron nitride (h-BN), can be used to create ultrathin heterostructures with complex functionalities, but this diversity of behaviors als
Publikováno v:
Korean Journal of Optics and Photonics. 24:143-147
A Raman spectrometer is essential for analyzing the characteristics of graphene. The commercial micro-Raman spectrometer is useful for measuring small areas, but due to the small measuring area, it has limited use in industry, as a sampling measure.
Autor:
Mark Levendorf, Lola Brown, David A. Muller, Jiwoong Park, Robin W. Havener, Pinshane Y. Huang, Cheol-Joo Kim
Publikováno v:
Nature. 488:627-632
Precise spatial control over the electrical properties of thin films is the key capability enabling the production of modern integrated circuitry. Although recent advances in chemical vapour deposition methods have enabled the large-scale production
Publikováno v:
NPG Asia Materials. 3:91-99
Laser-based imaging and characterization of individual nanostructures provides significant advantages over other imaging techniques, such as scanning probe microscopy and electron microscopy, by allowing simultaneous imaging and spectroscopic measure
Autor:
Li Yang, Robin W. Havener, Yufeng Liang, Ryan Soklaski, Shouting Huang, Jiwoong Park, Matt W. Graham
Publikováno v:
Physical Review B. 90
Common wisdom asserts that bound excitons cannot form in high-dimensional ($dg1$) metallic structures because of their overwhelming screening and the unavoidable resonance with nearby continuous bands. Strikingly we illustrate that this prevalent ass
Autor:
Lola Brown, Paul L. McEuen, Robin W. Havener, Robert Hovden, David A. Muller, Jiwoong Park, Cheol-Joo Kim, Matt W. Graham
Publikováno v:
Nano letters. 13(11)
The ability to control the stacking structure in layered materials could provide an exciting approach to tuning their optical and electronic properties. Because of the lower symmetry of each constituent monolayer, hexagonal boron nitride (h-BN) allow
Van Hove Singularities and Excitonic Effects in the Optical Conductivity of Twisted Bilayer Graphene
We report a systematic study of the optical conductivity of twisted bilayer graphene (tBLG) across a large energy range (1.2 eV to 5.6 eV) for various twist angles, combined with first-principles calculations. At previously unexplored high energies,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51cb8178e224c62343634d88cc49406c
Publikováno v:
Accounts of chemical research. 46(10)
Graphene, a truly two-dimensional hexagonal lattice of carbon atoms, possesses remarkable properties not seen in any other material, including ultrahigh electron mobility, high tensile strength, and uniform broadband optical absorption. While scienti