1.
Bruno I. Santos Gustavo Brunetto, Pedro A. Autreto; Galvao, Douglas S.
A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene Conference
A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene, no. AA15.102, MRS, 2011.
@conference{2011MRSFall,
title = {A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene},
author = {Gustavo Brunetto, Bruno I. Santos, Pedro A. Autreto, Leonardo D. Machado, R. dos Santos and Douglas S. Galvao},
url = {http://www.mrs.org/f11-abstracts-aa/
https://sites.ifi.unicamp.br/autretos/files/2015/04/2011MRSFallMeeting-AA-Abstracts-Symposium-AA-Carbon-Nanotubes-Graphene-and-Related-Nanostructures..2011-MRS-Fall-Meeting.pdf},
year = {2011},
date = {2011-12-02},
booktitle = {A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene},
number = {AA15.102},
publisher = {MRS},
abstract = {In the last decades many new carbon-based materials have been discovered. Examples of these materials are fullerenes, carbon nanotubes and graphene. Graphene has been one of the hottest topics in materials science in the last years. Graphene is a two dimensional array of hexagonal units of sp2 bonded carbon atoms with very unusual and interesting electronic and mechanical properties. Because of its special electronic properties, graphene is considered one of the most promising materials for future electronics. However, in its pristine state graphene is a gapless semiconductor, which poses some limitations to its use in some transistor electronics. Many approaches have been tried to create, in a controlled way, a gap in graphene. Among these approaches we can mention oxidation and chemical functionalizations. Hydrogenated graphene-like structures have been recently synthesized, as the so-called porous graphene [1]. In this work we show, based on ab initio quantum molecular dynamics calculations, that porous graphene dehydrogenation can lead to a spontaneous formation of a nonzero gap two-dimensional carbon allotrope, called biphenylene carbon (BC). This structure presents the ideal properties to electronic applications. Besides exhibiting an intrinsic nonzero gap, BC also presents well delocalized frontier orbitals, suggestive of a structure with high electronic mobility. Possible synthetic routes to obtain BC are addressed. [1] Y. F. Li, Z. Zhou, P. W. Shen, and Z. F. Chen, Chem. Commun. v46, 3672 (2010).},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
In the last decades many new carbon-based materials have been discovered. Examples of these materials are fullerenes, carbon nanotubes and graphene. Graphene has been one of the hottest topics in materials science in the last years. Graphene is a two dimensional array of hexagonal units of sp2 bonded carbon atoms with very unusual and interesting electronic and mechanical properties. Because of its special electronic properties, graphene is considered one of the most promising materials for future electronics. However, in its pristine state graphene is a gapless semiconductor, which poses some limitations to its use in some transistor electronics. Many approaches have been tried to create, in a controlled way, a gap in graphene. Among these approaches we can mention oxidation and chemical functionalizations. Hydrogenated graphene-like structures have been recently synthesized, as the so-called porous graphene [1]. In this work we show, based on ab initio quantum molecular dynamics calculations, that porous graphene dehydrogenation can lead to a spontaneous formation of a nonzero gap two-dimensional carbon allotrope, called biphenylene carbon (BC). This structure presents the ideal properties to electronic applications. Besides exhibiting an intrinsic nonzero gap, BC also presents well delocalized frontier orbitals, suggestive of a structure with high electronic mobility. Possible synthetic routes to obtain BC are addressed. [1] Y. F. Li, Z. Zhou, P. W. Shen, and Z. F. Chen, Chem. Commun. v46, 3672 (2010).
2011
1.
Bruno I. Santos Gustavo Brunetto, Pedro A. Autreto; Galvao, Douglas S.
A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene Conference
A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene, no. AA15.102, MRS, 2011.
Abstract | Links | BibTeX | Tags: molecular dynamics, porous graphene
@conference{2011MRSFall,
title = {A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene},
author = {Gustavo Brunetto, Bruno I. Santos, Pedro A. Autreto, Leonardo D. Machado, R. dos Santos and Douglas S. Galvao},
url = {http://www.mrs.org/f11-abstracts-aa/
https://sites.ifi.unicamp.br/autretos/files/2015/04/2011MRSFallMeeting-AA-Abstracts-Symposium-AA-Carbon-Nanotubes-Graphene-and-Related-Nanostructures..2011-MRS-Fall-Meeting.pdf},
year = {2011},
date = {2011-12-02},
booktitle = {A Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene},
number = {AA15.102},
publisher = {MRS},
abstract = {In the last decades many new carbon-based materials have been discovered. Examples of these materials are fullerenes, carbon nanotubes and graphene. Graphene has been one of the hottest topics in materials science in the last years. Graphene is a two dimensional array of hexagonal units of sp2 bonded carbon atoms with very unusual and interesting electronic and mechanical properties. Because of its special electronic properties, graphene is considered one of the most promising materials for future electronics. However, in its pristine state graphene is a gapless semiconductor, which poses some limitations to its use in some transistor electronics. Many approaches have been tried to create, in a controlled way, a gap in graphene. Among these approaches we can mention oxidation and chemical functionalizations. Hydrogenated graphene-like structures have been recently synthesized, as the so-called porous graphene [1]. In this work we show, based on ab initio quantum molecular dynamics calculations, that porous graphene dehydrogenation can lead to a spontaneous formation of a nonzero gap two-dimensional carbon allotrope, called biphenylene carbon (BC). This structure presents the ideal properties to electronic applications. Besides exhibiting an intrinsic nonzero gap, BC also presents well delocalized frontier orbitals, suggestive of a structure with high electronic mobility. Possible synthetic routes to obtain BC are addressed. [1] Y. F. Li, Z. Zhou, P. W. Shen, and Z. F. Chen, Chem. Commun. v46, 3672 (2010).},
keywords = {molecular dynamics, porous graphene},
pubstate = {published},
tppubtype = {conference}
}
In the last decades many new carbon-based materials have been discovered. Examples of these materials are fullerenes, carbon nanotubes and graphene. Graphene has been one of the hottest topics in materials science in the last years. Graphene is a two dimensional array of hexagonal units of sp2 bonded carbon atoms with very unusual and interesting electronic and mechanical properties. Because of its special electronic properties, graphene is considered one of the most promising materials for future electronics. However, in its pristine state graphene is a gapless semiconductor, which poses some limitations to its use in some transistor electronics. Many approaches have been tried to create, in a controlled way, a gap in graphene. Among these approaches we can mention oxidation and chemical functionalizations. Hydrogenated graphene-like structures have been recently synthesized, as the so-called porous graphene [1]. In this work we show, based on ab initio quantum molecular dynamics calculations, that porous graphene dehydrogenation can lead to a spontaneous formation of a nonzero gap two-dimensional carbon allotrope, called biphenylene carbon (BC). This structure presents the ideal properties to electronic applications. Besides exhibiting an intrinsic nonzero gap, BC also presents well delocalized frontier orbitals, suggestive of a structure with high electronic mobility. Possible synthetic routes to obtain BC are addressed. [1] Y. F. Li, Z. Zhou, P. W. Shen, and Z. F. Chen, Chem. Commun. v46, 3672 (2010).
Comentários