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相关论文: Graphdiyne: a two-dimensional thermoelectric mater…

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The two-dimensional graphene-like carbon allotrope, graphyne, has been recently fabricated and exhibits many interesting electronic properties. In this work, we investigate the thermoelectric properties of {\gamma}-graphyne by performing…

介观与纳米尺度物理 · 物理学 2016-08-19 P. H. Jiang , H. J. Liu , L. Cheng , D. D. Fan , J. Zhang , J. Wei , J. H. Liang

A series of carbon allotropes with novel optoelectronic and rich topological properties is predicted by systematic first-principles calculations. These fascinating carbon allotropes can be derived by inserting acetylenic linkages…

材料科学 · 物理学 2021-08-12 Yan Gao , Chengyong Zhong , Shengyuan A. Yang , Kai Liu , Zhong-Yi Lu

Tremendous experimental and theoretical attempts to find carbon based two-dimensional semiconductors have yielded a wide variety of graphene polymorphs, such as carbon-nitride, carbonboride, graphyne and graphdiyne 2D materials with highly…

材料科学 · 物理学 2020-03-09 S. Milad Hatam-Lee , Ali Rajabpour , Sebastian Volz

Graphdiyne is a novel two-dimensional material deriving from graphene that has been recently synthesized and featuring uniformly distributed sub-nanometer pores. We report accurate calculations showing that graphdiyne pores permit an almost…

Most recently, boron-graphdiyne, a {\pi}-conjugated two-dimensional (2D) structure made from merely sp carbon skeleton connected with boron atoms was successfully experimentally realized through a bottom-to-up synthetic strategy. Motivated…

计算物理 · 物理学 2018-05-14 Bohayra Mortazavi , Masoud Shahrokhi , Xiaoying Zhuang , Timon Rabczuk

We conducted density functional theory (DFT) and molecular dynamics simulations to explore the mechanical/failure, thermal conductivity and stability, electronic and optical properties of three N-graphdiyne nanomembranes. Our DFT results of…

计算物理 · 物理学 2018-05-14 Bohayra Mortazavi , Meysam Makaremi , Masoud Shahrokhi , Zheyong Fan , Timon Rabczuk

Recent years witnessed a rapid growth of interest of scientific and engineering communities to thermal properties of materials. Carbon allotropes and derivatives occupy a unique place in terms of their ability to conduct heat. The…

材料科学 · 物理学 2015-05-28 Alexander A. Balandin

Graphdiyne and graphyne are carbon-based two-dimensional (2D) porous atomic lattices, with outstanding physics and excellent application prospects for advanced technologies, like nanoelectronics and energy storage systems. During the last…

计算物理 · 物理学 2019-02-07 B. Mortazavi , M. Shahrokhi , M. E. Madjet , T. Hussain , X. Zhuang , T. Rabczuk

Carbon is one of the most intriguing elements in the Periodic Table. It forms many allotropes, some being known from ancient times (diamond and graphite) and some discovered ten to twenty years ago (fullerenes, nanotubes). Quite…

介观与纳米尺度物理 · 物理学 2007-05-23 M. I. Katsnelson

Designing new 2D systems with tunable properties is an important subject for science and technology. Starting from graphene, we developed an algorithm to systematically generate 2D carbon crystals belonging to the family of graphdiynes…

材料科学 · 物理学 2021-03-25 Patrick Serafini , Alberto Milani , Davide M. Proserpio , Carlo S. Casari

Graphene exhibits extraordinary electronic and mechanical properties, and extremely high thermal conductivity. Being a very stable atomically thick membrane that can be suspended between two leads, graphene provides a perfect test platform…

We study the electronic band structure of three-dimensional ABC-stacked (rhombohedral) graphdiyne, which is a new planar carbon allotrope recently fabricated. Using the first-principles calculation, we show that the system is a nodal-line…

介观与纳米尺度物理 · 物理学 2018-05-23 Takafumi Nomura , Tetsuro Habe , Ryota Sakamoto , Mikito Koshino

The thermoelectric properties of in plane heterostructures made of Graphene and hexagonal Boron Nitride (BN) have been investigated by means of atomistic simulation. The heterostructures consist in armchair graphene nanoribbons to the sides…

介观与纳米尺度物理 · 物理学 2015-08-19 Van-Truong Tran , Jérôme Saint Martin , Philippe Dollfus

Recently, a new carbon-based two-dimensional (2D) material, so called "carbon Ene-yne" (CEY), was successfully synthesized. In this work, we examine electronic, optical and thermal properties of this novel material. We studied the…

材料科学 · 物理学 2017-08-31 Bohayra Mortazavi , Masoud Shahrokhi , Timon Rabczuk , Luiz Felipe C. Pereira

We report the synthesis and evidence of graphene fluoride, a two-dimensional wide bandgap semiconductor derived from graphene. Graphene fluoride exhibits hexagonal crystalline order and strongly insulating behavior with resistance exceeding…

介观与纳米尺度物理 · 物理学 2015-05-18 S. -H. Cheng , K. Zou , F. Okino , H. R. Gutierrez , A. Gupta , N. Shen , P. C. Eklund , J. O. Sofo , J. Zhu

The subject of thermal transport at the mesoscopic scale and in low-dimensional systems is interesting for both fundamental research and practical applications. As the first example of truly two-dimensional materials, graphene has…

材料科学 · 物理学 2014-06-10 Yong Xu , Zuanyi Li , Wenhui Duan

Recently synthesized two-dimensional graphene-like material referred to as graphenylene is a semiconductor with a narrow direct bandgap that holds great promise for nanoelectronic applications. The significant bandgap increase can be…

介观与纳米尺度物理 · 物理学 2020-06-24 Ruslan M. Meftakhutdinov , Renat T. Sibatov , Aleksey I. Kochaev

Graphene is one of the most important materials in science today due to its unique and remarkable electronic, thermal and mechanical properties. However in its pristine state, graphene is a gapless semiconductor, what limits its use in…

材料科学 · 物理学 2014-08-13 P. A. S. Autreto , J. M. de Sousa , D. S. Galvao

Graphdiyne is prepared on metal surface, and making devices out of it also inevitably involves contact with metals. Using density functional theory with dispersion correction, we systematically studied for the first time the interfacial…

In addition to its exotic electronic properties graphene exhibits unusually high intrinsic thermal conductivity. The physics of phonons - the main heat carriers in graphene - was shown to be substantially different in two-dimensional (2D)…

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