Effect of carbon nanotubes produced by using different methods on electrical and optical properties of zinc oxide–carbon nanotube composite

2015 ◽  
Vol 106 (6) ◽  
pp. 641-646 ◽  
Author(s):  
Omer Guler
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Optical Properties ◽  
Carbon Nanotube ◽  
Electrical And Optical Properties ◽  
Carbon Nanotube Composite

The effect of an excessive amount of carbon nanotubes on the properties of zinc oxide-carbon nanotube nanocomposites

2016 ◽  
Vol 23 (4) ◽  
pp. 389-394 ◽  
Author(s):  
Ömer Güler
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Optical Properties ◽  
Carbon Nanotube ◽  
Electrical Transport ◽  
Chemical Vapor ◽  
Electrical And Optical Properties ◽  
Temperature Conductivity ◽  
Room Temperature Conductivity

AbstractThe effect of the amount of carbon nanotubes on the electrical and optical properties of carbon nanotube (CNT)-zinc oxide nanocomposites was investigated. In this study, carbon nanotubes were prepared by chemical vapor deposition in a fluidized reactor. The diameters and lengths of the carbon nanotubes that were synthesized were determined by high-resolution transmission electron microscopy to be 20–30 nm and a few micrometers, respectively. Then, CNTs were added to commercial zinc oxide powder to prepare the nanocomposite. The structural, optical, and electrical properties of the samples were characterized by various techniques, such as scanning electron microscopy (SEM), UV-vis absorption, and electrical transport measurements. The room temperature conductivity σ25 values of the undoped ZnO and ZnO doped with 0.1% CNTs, 0.2% CNTs, and 5% CNTs were found to be 6.55×10-5, 5.46×10-4, 1.23×10-3, and 2.83×10-2 S/cm, respectively. The optical band gaps of the composites were determined by the Kubelka-Munk theory based on the analysis of diffuse reflectance. The results that were obtained indicated that the electrical and optical properties of ZnO semiconductors can be improved by the incorporation of CNTs. However, the ZnO lost some of its distinctive properties when excess amounts of CNTs were used in the ZnO-CNT composites.

Electrical and optical properties of flexible conductive carbon nanotube/Ag/Al-doped zinc oxide multilayer coatings

2012 ◽  
Vol 525 ◽  
pp. 93-96 ◽  
Author(s):  
Fushan Li ◽  
Zhixiao Lin ◽  
Beibei Zhang ◽  
Chaoxing Wu ◽  
Chunyan Hong ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Carbon Nanotube ◽  
Multilayer Coatings ◽  
Electrical And Optical Properties

Electrical and Optical Properties of Carbon Nanotube Hybrid Zinc Oxide Nanocomposites Prepared by Ball Mill Technique

2015 ◽  
Vol 23 (10) ◽  
pp. 865-869 ◽  
Author(s):  
Ömer Guler ◽  
Seval Hale Guler ◽  
Fahrettin Yo ◽  
Handan Aydin ◽  
Cihat Aydin ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Carbon Nanotube ◽  
Ball Mill ◽  
Electrical And Optical Properties

Mechanical Properties Of Polyaniline / Multi-walled Carbon Nanotube Composite Films

2003 ◽  
Vol 791 ◽  
Author(s):  
P. C. Ramamurthy ◽  
W. R. Harrell ◽  
R. V. Gregory ◽  
B. Sadanadan ◽  
A. M. Rao
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Weight Percent ◽  
Organic Electronic Devices ◽  
Multiwalled Carbon ◽  
Multi Walled Carbon Nanotube ◽  
Contact Devices ◽  
Carbon Nanotube Composite

ABSTRACTHigh molecular weight polyaniline / multi-walled carbon nanotube composite films were fabricated using solution processing. Composite films with various weight percentages of multiwalled carbon nanotubes were fabricated. Physical properties of these composites were analyzed by thermogravimetric analysis, tensile testing, and scanning electron microscopy. These results indicate that the addition of multiwalled nanotubes to polyaniline significantly enhances the mechanical properties of the films. In addition, metal–semiconductor (composite) (MS) contact devices were fabricated, and it was observed that the current level in the films increased with increasing multiwalled nanotube content. Furthermore, it was observed that polyaniline containing one weight percent of carbon nanotubes appears to be the most promising composition for applications in organic electronic devices.

Electrical and optical properties of conducting polymer-C60-carbon nanotube system

2001 ◽  
Vol 121 (1-3) ◽  
pp. 1591-1592 ◽  
Author(s):  
S.B. Lee ◽  
T. Katayama ◽  
H. Kajii ◽  
H. Araki ◽  
K. Yoshino
Keyword(s):  
Optical Properties ◽  
Carbon Nanotube ◽  
Conducting Polymer ◽  
Electrical And Optical Properties

Effect of Catalytically Active Zinc Oxide−Carbon Nanotube Composite on Sensitive Assay of Desloratadine Metabolite

2019 ◽  
Vol 32 (1) ◽  
pp. 50-58 ◽  
Author(s):  
Kubra Ozturk ◽  
Nurgul K. Bakirhan ◽  
Sibel A. Ozkan ◽  
Bengi Uslu
Keyword(s):  
Zinc Oxide ◽  
Carbon Nanotube ◽  
Sensitive Assay ◽  
Catalytically Active ◽  
Carbon Nanotube Composite

Fabrication of Graphene/Carbon Nanotube Composite Modified Electrode for Selective and Sensitive Determination of Uric Acid

2013 ◽  
Vol 641-642 ◽  
pp. 562-565
Author(s):  
Zheng Xiao Liu ◽  
Jian Fei Xia ◽  
Zong Hua Wang ◽  
Yan Zhi Xia ◽  
Fei Fei Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Uric Acid ◽  
Carbon Nanotube ◽  
Modified Electrode ◽  
Phosphate Buffer Solution ◽  
Carbon Electrode ◽  
Buffer Solution ◽  
Sensitive Determination ◽  
Carbon Nanotube Composite

A novel composite was firstly synthesized by compositing graphenes (G) and carbon nanotubes (CNTs) and then a new composite modified electrode (G/CNTs/GCE) was prepared by coating the resulting composite on the surface of the glassy carbon electrode (GCE). The composite modified electrode G/CNTs/GCE showed great electrochemical activities which were studied by sensitive determining the electrochemistry behaviors of uric acid (UA). It revealed when the concentration range of UA changed from 1×10-7 mol/L to 1×10-3 mol/L, the peak currents had linear relationship with the concentration of UA in the phosphate buffer solution (PBS) which the value of pH is 7.0. And the linear equation is ip (μA) = 21.55C+28.94 (C: mmol/L), with the related coefficient 0.9964.

scholarly journals An ultra-compact blackbody using electrophoretic deposited carbon nanotube films

RSC Advances ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 3453-3461 ◽  
Author(s):  
Albert Lin ◽  
Chien-Chih Yang ◽  
Parag Parashar ◽  
Chien-Yung Lin ◽  
Ding Rung Jian ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Properties ◽  
Carbon Nanotube ◽  
Low Cost ◽  
Black Body ◽  
Compact Dimension ◽  
Nanotube Films

Electrophoretic-deposited carbon nanotubes (EPD-CNTs) possess decent optical properties and low-cost processing and thus can be used as an ideal black body with compact dimension.

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