scholarly journals Bandgap engineering of carbon allotropes

2014 ◽  
Vol 27 (1) ◽  
pp. 113-127
Author(s):  
Vijay Arora
Keyword(s):  
Carbon Nanotubes ◽  
Boundary Condition ◽  
Quantum Transport ◽  
Graphene Layer ◽  
Graphene Nanoribbons ◽  
Bandgap Engineering ◽  
Momentum Vector ◽  
Carbon Allotropes ◽  
Narrow Width ◽  
Relationship Of

Starting from the graphene layer, the bandgap engineering of carbon nanotubes (CNTs) and graphene nanoribbons (GNRs) is described by applying an appropriate boundary condition. Linear E-k relationship of graphene transforms to a parabolic one as momentum vector in the tube direction is reduced to dimensions smaller than inverse of the tube diameter of a CNT. Similar transition is noticeable for narrow width of a GNR. In this regime, effective mass and bandgap expressions are obtained. A CNT or GNR displays a distinctly 1D character suitable for applications in quantum transport.

Time-dependent wave-packet approach to the quantum transport of carbon nanotubes with vacancies

2007 ◽  
Vol 601 (22) ◽  
pp. 5266-5269 ◽  
Author(s):  
Hiroyuki Ishii ◽  
Nobuhiko Kobayashi ◽  
Kenji Hirose
Keyword(s):  
Carbon Nanotubes ◽  
Wave Packet ◽  
Quantum Transport ◽  
Time Dependent

Optical Properties of Graphene Nanoribbons Encapsulated in Single-Walled Carbon Nanotubes

ACS Nano ◽  
2013 ◽  
Vol 7 (7) ◽  
pp. 6346-6353 ◽  
Author(s):  
Alexander I. Chernov ◽  
Pavel V. Fedotov ◽  
Alexandr V. Talyzin ◽  
Inma Suarez Lopez ◽  
Ilya V. Anoshkin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Properties ◽  
Graphene Nanoribbons ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Fabrication and Optical Probing of Highly Extended, Ultrathin Graphene Nanoribbons in Carbon Nanotubes

ACS Nano ◽  
2015 ◽  
Vol 9 (5) ◽  
pp. 5034-5040 ◽  
Author(s):  
Hong En Lim ◽  
Yasumitsu Miyata ◽  
Miho Fujihara ◽  
Susumu Okada ◽  
Zheng Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Nanoribbons ◽  
Optical Probing

scholarly journals Biological activity of carbon nanoparticles produced in combustion process

2019 ◽  
Vol 179 (4) ◽  
pp. 269-273
Author(s):  
Jarosław KAŁUŻNY ◽  
Natalia IDASZEWSKA ◽  
Tomasz RUNKA ◽  
Adam PIASECKI ◽  
Marek NOWICKI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Study ◽  
Carbon Nanoparticles ◽  
Dominant Role ◽  
Combustion Process ◽  
Industrial Applications ◽  
Carbon Allotropes ◽  
Air Purifier ◽  
Residential Space

In the recent years industrial applications of carbon allotropes such as carbon nanotubes (CNTs) and graphene have been tested extensively, thus justifying research on the environmental impact these materials have. In the current paper we compare EDS spectroscopy results of a cabin filter used in a car to a filter used in an air purifier inside a residential space. The contaminants adsorbed on the carbon nanoparticles trapped in both types of filters allows for determining of their source of origin demonstrating clearly the dominant role of non-road emissions in Poland. Finally we present the experimental study on the growth of plants on substrates intentionally enriched with CNTs.

Electronic structure of defects and quantum transport in carbon nanotubes

2006 ◽  
Vol 376-377 ◽  
pp. 7-10 ◽  
Author(s):  
Jae-Hyeon Eom ◽  
Hoonkyung Lee ◽  
Jino Im ◽  
Changwon Park ◽  
Byoung Wook Jeong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Structure ◽  
Quantum Transport
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