scholarly journals Dry-Transfer of Aligned Multiwalled Carbon Nanotubes for Flexible Transparent Thin Films

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Matthew Cole ◽  
Pritesh Hiralal ◽  
Kai Ying ◽  
Chi Li ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Chemical Vapour ◽  
Single Step ◽  
Stretchable Electronics ◽  
Multiwalled Carbon ◽  
Polymer Substrates ◽  
Wet Chemistry ◽  
Opening Up

Herein we present an inexpensive facile wet-chemistry-free approach to the transfer of chemical vapour-deposited multiwalled carbon nanotubes to flexible transparent polymer substrates in a single-step process. By controlling the nanotube length, we demonstrate accurate control over the electrical conductivity and optical transparency of the transferred thin films. Uniaxial strains of up to 140% induced only minor reductions in sample conductivity, opening up a number of applications in stretchable electronics. Nanotube alignment offers enhanced functionality for applications such as polarisation selective electrodes and flexible supercapacitor substrates. A capacitance of 17 F/g was determined for supercapacitors fabricated from the reported dry-transferred MWCNTs with the corresponding cyclic voltagrams showing a clear dependence on nanotube length.

scholarly journals Optoelectronic properties of DNA thin films implanted with titania nanoparticle-coated multiwalled carbon nanotubes

AIP Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 015011 ◽  
Author(s):  
Sreekantha Reddy Dugasani ◽  
Bramaramba Gnapareddy ◽  
Mallikarjuna Reddy Kesama ◽  
Sohee Jeon ◽  
Jun-Ho Jeong ◽  
...  
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Optoelectronic Properties ◽  
Multiwalled Carbon ◽  
Titania Nanoparticle

A single step process for the simultaneous purification and opening of multiwalled carbon nanotubes

2005 ◽  
Vol 412 (1-3) ◽  
pp. 184-189 ◽  
Author(s):  
E. Raymundo-Piñero ◽  
T. Cacciaguerra ◽  
P. Simon ◽  
F. Béguin
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Single Step ◽  
Multiwalled Carbon ◽  
Step Process

Single step synthesis of graphene nanoribbons by catalyst particle size dependent cutting of multiwalled carbon nanotubes

Nanoscale ◽  
2011 ◽  
Vol 3 (9) ◽  
pp. 3876 ◽  
Author(s):  
Upendra Kumar Parashar ◽  
Suraj Bhandari ◽  
Rajesh Kumar Srivastava ◽  
Deep Jariwala ◽  
Anchal Srivastava
Keyword(s):  
Carbon Nanotubes ◽  
Particle Size ◽  
Multiwalled Carbon Nanotubes ◽  
Graphene Nanoribbons ◽  
Catalyst Particle ◽  
Single Step ◽  
Multiwalled Carbon ◽  
Size Dependent ◽  
Catalyst Particle Size

scholarly journals Structural, electronic and photovoltaic characterization of multiwalled carbon nanotubes grown directly on stainless steel

2012 ◽  
Vol 3 ◽  
pp. 360-367 ◽  
Author(s):  
Luca Camilli ◽  
Manuela Scarselli ◽  
Silvano Del Gobbo ◽  
Paola Castrucci ◽  
Eric Gautron ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Stainless Steel ◽  
Electronic Properties ◽  
Multiwalled Carbon Nanotubes ◽  
Silicon Substrate ◽  
Carbon Nanostructures ◽  
Pyrolytic Graphite ◽  
Chemical Vapour ◽  
Multiwalled Carbon ◽  
Aisi 316 Stainless Steel

We have taken advantage of the native surface roughness and the iron content of AISI-316 stainless steel to grow multiwalled carbon nanotubes (MWCNTs) by chemical vapour deposition without the addition of an external catalyst. The structural and electronic properties of the synthesized carbon nanostructures have been investigated by a range of electron microscopy and spectroscopy techniques. The results show the good quality and the high graphitization degree of the synthesized MWCNTs. Through energy-loss spectroscopy we found that the electronic properties of these nanostructures are markedly different from those of highly oriented pyrolytic graphite (HOPG). Notably, a broadening of the π-plasmon peak in the case of MWCNTs is evident. In addition, a photocurrent was measured when MWCNTs were airbrushed onto a silicon substrate. External quantum efficiency (EQE) and photocurrent values were reported both in planar and in top-down geometry of the device. Marked differences in the line shapes and intensities were found for the two configurations, suggesting that two different mechanisms of photocurrent generation and charge collection are in operation. From this comparison, we are able to conclude that the silicon substrate plays an important role in the production of electron–hole pairs.

scholarly journals The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

2015 ◽  
Vol 60 (2) ◽  
pp. 1057-1063 ◽  
Author(s):  
A.D. Dobrzańska-Danikiewicz ◽  
D. Cichocki ◽  
D. Łukowiec
Keyword(s):  
Carbon Nanotubes ◽  
High Temperature ◽  
Multiwalled Carbon Nanotubes ◽  
Chemical Vapour ◽  
Multiwalled Carbon ◽  
Rhodium Nanoparticles ◽  
Temperature Method ◽  
The Subject ◽  
20 Nm ◽  
Metallic Impurities

AbstractA nanocomposite was fabricated during the research undertaken, consisting of multiwalled carbon nanotubes coated with rhodium nanoparticles by the new high-temperature method being the subject of the patent claim. High quality multiwalled carbon nanotubes (MWCNTs) with the length of 100÷500 nm and the diameter of 8÷20 nm obtained in advance with Catalytic Chemical Vapour Deposition (CVD) were employed in the investigations. The nanotubes manufactured under the own research contain small amounts of metallic impurities and amorphous carbon deposits. Multiwalled carbon nanotubes functionalisation in acids was applied to deposit rhodium nanoparticles onto the surface of carbon nanotubes, and then the material was placed in a solution being a precursor of rhodium nanoparticles. The material prepared was next placed in a quartz vessel and subjected to high-temperature reduction in the atmosphere of argon to deposit rhodium nanoparticles onto the surface of multiwalled carbon nanotubes. The following examinations were performed, respectively: MWCNTs fabrication, fabrication of a CNT-NPs (Carbon NanoTube-NanoParticles) nanocomposite material; the characterisation of the materials produced including examination of the structure and morphology, and the assessment of rhodium nanoparticles distribution on the surface of carbon nanotubes. Micro- and spectroscopy techniques were employed to characterise the structure of the nanocomposites obtained.

Transparent, Flexible Conducting Hybrid Multilayer Thin Films of Multiwalled Carbon Nanotubes with Graphene Nanosheets

ACS Nano ◽  
2010 ◽  
Vol 4 (7) ◽  
pp. 3861-3868 ◽  
Author(s):  
Tae-Keun Hong ◽  
Dong Wook Lee ◽  
Hyun Jung Choi ◽  
Hyeon Suk Shin ◽  
Byeong-Su Kim
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Graphene Nanosheets ◽  
Multilayer Thin Films ◽  
Multiwalled Carbon
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