Modulating the electronic properties of graphdiyne nanoribbons

Zheng-Zhe Lin, Qun Wei, Xuanmin Zhu (Submitted on 7 Nov 2013) By ab initio calculation, Au, Cu, Fe, Ni and Pt adatoms were proposed for modulating the electronic property of graphdiyne naoribbons (GDNRs). GDNRs of 1~4 nm in width were found to be stable at room temperature, and the thermal rates of Au, Cu, Fe, Ni and Pt adatoms escaping from GDNR are slower than 0.003 atoms per hour even at 900 K. According to the calculation, Au and Cu-decorated GDNRs are metallic with carrier concentrations close to that of graphene at room temperature, while Fe, Ni and Pt-decorated GDNRs are n-type semiconductors with impurity states below Fermi energy. Heterojunction composed by doping Au, Cu or Fe atom on one side of GDNR was proposed as metal-semiconductor rectifier with rectification ratio of 2.8, 1.5 or 2.5 at 1.0 V, respectively. read on Posted by Mike Favale owner of Graphdiyne.com

Structural, Electronic, and Optical Properties of Bulk Graphdiyne

Guangfu Luo , Qiye Zheng , Wai-Ning Mei , Jing Lu , and Shigeru Nagase J. Phys. Chem. C, Just Accepted Manuscript DOI: 10.1021/jp402218k Publication Date (Web): June 4, 2013 Copyright © 2013 American Chemical Society Abstract Graphdiyne is a newly discovered two-dimensional carbon allotrope with many special features. Using density functional theory plus van der Waals (vdW) density functional, we investigate the structural, electronic, and optical properties of several possible graphdiyne bulk structures. We find that bulk graphdiyne can be either a semiconductor or a metal, depending on its stacking configuration. The interlayer vdW force redshifts the optical absorption peaks of bulk graphdiyne relative to those of the monolayer, and spectra of different stackings display notable differences in the energy range below 1 eV. Finally, combining with earlier electrical and optical experiments, we identify the structure of the recently synthesized graphdiyne film. Posted by Mike Favale Tellcar Innovations, LLC www.tellcar.com owner of Graphdiyne.com

Selective hydrogen purification through graphdiyne under ambient temperature and pressure - Nanoscale (RSC Publishing)

Selective hydrogen purification through graphdiyne under ambient temperature and pressure - Nanoscale (RSC Publishing)

Posted by Mike Favale
Tellcar Innovations, LLC
www.tellcar.com
owner of graphdiyne.com

Nanotechnology Roundup: Research and Markets: Silicene, Graphyne, Graphdiy...

Nanotechnology Roundup: Research and Markets: Silicene, Graphyne, Graphdiy...: ... nior Manager. press@researchandmarkets.com U.S. Fax: 646-607-1907 Fax (outside U.S.): +353-1-481-1716 Sector: Nanotechnology http://www...

Posted by Mike Favale
Tellcar Innovations, LLC
www.tellcar.com
owner of graphdiyne.com

Nanochemistry: Electronic Structure of Graphdiyne Probed by X-ray Absorption Spectroscopy and Scanning Transmission X-ray Microscopy

Nanochemistry: Electronic Structure of Graphdiyne Probed by X-ray Absorption Spectroscopy and Scanning Transmission X-ray Microscopy

posted by Mike Favale
Tellcar Innovations, llc
www.tellcar.com
owner of graphdiyne.com

Global Nanotechnology and Nanomaterials Industry Stage of Development, Global Activity and Market Opportunities

Global Nanotechnology and Nanomaterials Industry Stage of Development, Global Activity and Market Opportunities: Nanotechnology applications and nanomaterials are being applied across a raft of industries due to their outstanding magnetic, optical, catalytic and electronic properties. There are already established market for nanomaterials including titanium dioxide, zinc oxide, silicon oxide nanopowders and carbon nanotubes, nanofibers, nanosilver, nanoclays, quantum dots and nanoporous materials driven by demand from applications in filtration, electronics, cosmetics, energy, medicine, chemicals, coatings and catalysts. Recent breakthroughs have heralded new market opportunities in graphene and nanocellulose. This new 696-page report from Future Market, Inc., the world’s leading provider of nanotechnology and nanomaterials information and publisher of Nanotech Magazine, provides a comprehensive insight into all aspects of the market for these materials.


Posted by Mike Favale
Tellcar Innovations ,LLC
www.tellcar.com
owner of graphdiyne.com