Formation of graphene quantum dots by "Planting" hydrogen atoms at a graphene nanoribbon

被引：14

作者：

Chernozatonskii, L. A. ^{[1
]}

Artyukh, A. A. ^{[1
]}

Kvashnin, D. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119334, Russia

来源：

JETP LETTERS | 2012年 / 95卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Hydrogen Atom; JETP Letter; Hydrogen Adsorption; Mobile Edge; Graphene Domain;

D O I：

10.1134/S0021364012050049

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Different technological approaches for creating graphene quantum dots by the adsorption of hydrogen atoms are considered. The adsorption can occur both at convex portions of a distorted graphene nanoribbon and in the structure formed by two distorted graphene nanoribbon rows superimposed on each other at the places free from the ribbon crossings. It is shown that settlement of hydrogen atoms at convex portions of the nanoribbons is energetically favorable. This gives rise to the creation of insulating graphane (CH) nanodomains separating the conducting regions. As a result, a graphene quantum dot appears. The variation of the electron spectra of graphene quantum dots with the length of these graphane regions is discussed.

引用

页码：266 / 270

页数：5

共 23 条

[1] Enhanced stability of hydrogen atoms at the graphene/graphane interface of nanoribbons [J].

Ao, Z. M. ;

Hernandez-Nieves, A. D. ;

Peeters, F. M. ;

Li, S. .

APPLIED PHYSICS LETTERS, 2010, 97 (23)

[2] Structure and Layer Interaction in Carbon Monofluoride and Graphane: A Comparative Computational Study [J].

Artyukhov, Vasilii I. ;

Chernozatonskii, Leonid A. .

JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 114 (16) :5389-5396

[3] Rational Fabrication of Graphene Nanoribbons Using a Nanowire Etch Mask [J].

Bai, Jingwei ;

Duan, Xiangfeng ;

Huang, Yu .

NANO LETTERS, 2009, 9 (05) :2083-2087

[4] Enhancement of Chemical Activity in Corrugated Graphene [J].

Boukhvalov, Danil W. ;

Katsnelson, Mikhail I. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (32) :14176-14178

[5] EMPIRICAL POTENTIAL FOR HYDROCARBONS FOR USE IN SIMULATING THE CHEMICAL VAPOR-DEPOSITION OF DIAMOND FILMS [J].

BRENNER, DW .

PHYSICAL REVIEW B, 1990, 42 (15) :9458-9471

[6] Diamond-like C2H nanolayer, diamane: Simulation of the structure and properties [J].

Chernozatonskii, L. A. ;

Sorokin, P. B. ;

Kvashnin, A. G. ;

Kvashnin, D. G. .

JETP LETTERS, 2009, 90 (02) :134-138

[7] Two-dimensional semiconducting nanostructures based on single graphene sheets with lines of adsorbed hydrogen atoms [J].

Chernozatonskii, Leonid A. ;

Sorokin, Pavel B. ;

Bruening, Jochen W. .

APPLIED PHYSICS LETTERS, 2007, 91 (18)

[8] Coulomb gap in graphene nanoribbons [J].

Droescher, S. ;

Knowles, H. ;

Meir, Y. ;

Ensslin, K. ;

Ihn, T. .

PHYSICAL REVIEW B, 2011, 84 (07)

[9] Control of Graphene's Properties by Reversible Hydrogenation: Evidence for Graphane [J].

Elias, D. C. ;

Nair, R. R. ;

Mohiuddin, T. M. G. ;

Morozov, S. V. ;

Blake, P. ;

Halsall, M. P. ;

Ferrari, A. C. ;

Boukhvalov, D. W. ;

Katsnelson, M. I. ;

Geim, A. K. ;

Novoselov, K. S. .

SCIENCE, 2009, 323 (5914) :610-613

[10] The General Utility Lattice Program (GULP) [J].

Gale, JD ;

Rohl, AL .

MOLECULAR SIMULATION, 2003, 29 (05) :291-341

← 1 2 3 →