scholarly journals Effects of frequency on supercapacitor properties of multi walled carbon nanotubes-polypyrrole film prepared by alternating current-electrophoretic deposition method

2020 ◽  
Vol 7 (2) ◽  
pp. 025605
Author(s):  
Muhammad Syafiq Adham Mohd Saini ◽  
Nor Aimi Abdul Wahab ◽  
Azmi Mohamed Yusof ◽  
Mohd Zaki Mohd Yusoff ◽  
Abd Hakim Hashim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrophoretic Deposition ◽  
Alternating Current ◽  
Deposition Method ◽  
Multi Walled Carbon Nanotubes ◽  
Polypyrrole Film ◽  
Walled Carbon Nanotubes

Electrophoretic Deposition of Carbon Nanotubes for Interconnections in Microelectronics

2013 ◽  
Vol 1559 ◽  
Author(s):  
Chiew Keat Lim ◽  
Yadong Wang ◽  
Shixin Wu
Keyword(s):  
Carbon Nanotubes ◽  
Electric Fields ◽  
Electrophoretic Deposition ◽  
Flip Chip ◽  
Low Cost ◽  
Electrical Contacts ◽  
Mechanical And Thermal Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Bond Pads ◽  
Walled Carbon Nanotubes

ABSTRACTCarbon nanotubes (CNTs) have been considered as a promising interconnect material to replace the solder bump used in the flip chip package because of their special electrical, mechanical and thermal properties, which may promote both the performance and reliability of the flip chip packaging. In this paper, electrophoretic deposition (EPD) of CNTs on substrates has been demonstrated for the interconnect application. EPD is a simple, low cost and high throughput process that is capable to produce densely packed film with good homogeneity at low temperature. By altering the electric fields and deposition time during the EPD process, the thickness of the CNTs film could be controlled. In this study, multi-walled carbon nanotubes (MWCNTs) were successfully coated on the various substrates using the EPD method. A highly uniform CNTs microstructure film with thickness over 5 µm was achieved. In addition, the selective depositions of CNTs on the pre-defined bond pads to form CNTs bumps were also accomplished. By employing typical flip-chip bonding technique, high density CNTs bumps were aligned to form a test chip/host substrate interconnects. The electrical conductivity of the CNTs interconnects was carried out using four-point probe measurement. Reliable electrical contacts with linear relationship in the current-voltage (I-V) characteristic suggesting ohmic behaviour were attained. The overall resistances extracted were also relatively low. These superior electrical properties have demonstrated that the CNTs bumps deposited using EPD method is a viable way to serve as an alternative to current metal solder interconnects material such as Sn-Pb alloys. Hence, it offers a promising interconnect application in the quest for device miniaturization in microelectronic industry.

Synthesis of Carbon Nanotubes Using Plant Source and Study their Properties

2021 ◽  
Vol 19 (11) ◽  
pp. 95-101
Author(s):  
Athraa Mohamed Rashed ◽  
Abdulqadier Hussien Al Khazraji
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Activated Charcoal ◽  
Citrus Aurantium ◽  
Deposition Method ◽  
Fesem Image ◽  
Plant Source ◽  
Multi Walled Carbon Nanotubes ◽  
Synthesis Of Carbon Nanotubes ◽  
Walled Carbon Nanotubes

In this study the normal and activated charcoal were used to prepare normal and activated multi walled carbon nanotubes (MWCNTs) from same plant (Citrus aurantium) which is a source of carbon by Chemical Flame Deposition method (CFDM). The obtained products were analyzed using FESEM, FTIR, XRD, and Raman spectroscopy. The FESEM image of normal charcoal revealed that it has much less nanopores than activated charcoal. The ratios of ID/IG for the normal and activated MWCNTs were 0.85 and 0.91 respectively, which shows that use activated charcoal as a source enhance the disorder and the defects on the carbon nanotubes. The results demonstrate and confirmed that a carbon nanotubes which were prepared from normal and activated charcoal have some disfigurements and have converging diameter nearly (31-88 nm) and (37-70nm) for normal and activated MWCNTs with length about (1-2) μm respectively.

Electrophoretic Deposition of Carbon Nanotubes on Metallic Surfaces

2006 ◽  
Vol 314 ◽  
pp. 141-146 ◽  
Author(s):  
B.J.C. Thomas ◽  
M.S.P. Shaffer ◽  
Sarah Freeman ◽  
M. Koopman ◽  
Krish K. Chawla ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrophoretic Deposition ◽  
Cost Effective ◽  
Heat Extraction ◽  
Metallic Surfaces ◽  
Tissue Engineering Scaffolds ◽  
Homogeneous Microstructure ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Steel Substrates

A method based on electrophoretic deposition has been developed to produce uniform deposits of multi-walled carbon nanotubes on stainless steel substrates. Aqueous suspensions were used under constant voltage conditions in the range of 5 to 50 V, with deposition times ranging from 0.5 to 10 minutes. The thickness of the coatings was controlled by variation of voltage and deposition time during EPD. Coatings of up to 100μm thickness were achieved, which exhibit homogeneous microstructure. The EPD technique is fast, cost-effective, and it can be applied to complex shapes. Possible applications of CNT coatings are in heat extraction devices or porous nanostructured coatings for tissue engineering scaffolds.

Carbon nanotube and graphene oxide directed electrochemical synthesis of silver dendrites

RSC Advances ◽  
2014 ◽  
Vol 4 (75) ◽  
pp. 39645-39650 ◽  
Author(s):  
Li Fu ◽  
Guosong Lai ◽  
Peter J. Mahon ◽  
James Wang ◽  
Deming Zhu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Deposition Method ◽  
Electro Deposition ◽  
Multi Walled Carbon Nanotubes ◽  
One Step ◽  
Silver Dendrites ◽  
Walled Carbon Nanotubes ◽  
Dendritic Structures

A simple one-step electro-deposition method was employed for the synthesis of silver dendritic structures with the aid of graphene oxide (GO) modified multi-walled carbon nanotubes (MWCNTs) which are dispersed in an AgNO3 solution.

scholarly journals Covalently bonded surface functional groups on carbon nanotubes: from molecular modeling to practical applications

Nanoscale ◽  
2021 ◽  
Author(s):  
Aleksandra Benko ◽  
Joanna Duch ◽  
Marta Gajewska ◽  
Mateusz M Marzec ◽  
Andrzej Bernasik ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Modeling ◽  
Electrophoretic Deposition ◽  
Deposition Process ◽  
Surface Functional Groups ◽  
Chemical Functionalization ◽  
Practical Applications ◽  
Covalently Bonded ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The aim of this work was to investigate how chemical functionalization affects the electronic properties of multi-walled carbon nanotubes, altering the electrophoretic deposition process – a method of choice for...

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