Processing and characterization of high content multilayer graphene/epoxy composites with high electrical conductivity

2015 ◽  
Vol 37 (9) ◽  
pp. 2897-2906 ◽  
Author(s):  
Fuzhong Wang ◽  
Lawrence T. Drzal ◽  
Yan Qin ◽  
Zhixiong Huang
Keyword(s):  
Electrical Conductivity ◽  
Epoxy Composites ◽  
Multilayer Graphene ◽  
High Electrical Conductivity

Preparation and Characterization of Gallium-Doped Zinc Oxide Nanopowders with High Electrical Conductivity

2007 ◽  
Vol 336-338 ◽  
pp. 2041-2043 ◽  
Author(s):  
Shang Feng Du ◽  
J. Liu ◽  
Yun Fa Chen
Keyword(s):  
Electrical Conductivity ◽  
Zinc Oxide ◽  
Volume Resistivity ◽  
Precipitation Method ◽  
High Electrical Conductivity ◽  
Electrically Conductive ◽  
Oxide Particles ◽  
Zinc Oxide Particles ◽  
Co Precipitation

Gallium-doped zinc oxide nanopowders with high electrical conductivity were prepared by calcining the precursor synthesized from ZnSO4·7H2O, GaCl3 and NH4HCO3 by co-precipitation method. The obtained samples were characterized by FE-SEM, TEM, XRD, XPS and BET techniques. The precursor particles were in the shape of sheet-like with size about several hundred nanometers. The electrically conductive zinc oxide particles, in the shape of sphere-like, were about 10~40 nm with low agglomeration, and the specific surface area was 28.7 m2/g. XRD and XPS results showed that all the doped Ga exists as the substitution form of Ga• Zn in the ZnO system. The volume resistivity of the product was as lower as 4.5 :·cm.

scholarly journals Electrical characterization and examination of temperature-induced degradation of metastable Ge0.81Sn0.19 nanowires

Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19443-19449 ◽  
Author(s):  
M. Sistani ◽  
M. S. Seifner ◽  
M. G. Bartmann ◽  
J. Smoliner ◽  
A. Lugstein ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Elevated Temperatures ◽  
Electrical Characterization ◽  
High Electrical Conductivity ◽  
Device Stability ◽  
The Impact ◽  
Metastable Material

Electrical characterization of Ge0.81Sn0.19 nanowires has been performed revealing high electrical conductivity and semiconductor behaviour when cooled to 10 K. The impact on slightly elevated temperatures on the device stability of this metastable material is described.

Processable 3-nm thick graphene platelets of high electrical conductivity and their epoxy composites

2014 ◽  
Vol 25 (12) ◽  
pp. 125707 ◽  
Author(s):  
Qingshi Meng ◽  
Jian Jin ◽  
Ruoyu Wang ◽  
Hsu-Chiang Kuan ◽  
Jun Ma ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Epoxy Composites ◽  
High Electrical Conductivity ◽  
Graphene Platelets

scholarly journals High-Electrical-Conductivity Multilayer Graphene Formed by Layer Exchange with Controlled Thickness and Interlayer

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hiromasa Murata ◽  
Yoshiki Nakajima ◽  
Noriyuki Saitoh ◽  
Noriko Yoshizawa ◽  
Takashi Suemasu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Multilayer Graphene ◽  
High Electrical Conductivity

Characterization of Electrical Conductivity of Carbon Nanotube Composites

2014 ◽  
Author(s):  
Shen Gong ◽  
Zhenghong Zhu ◽  
Jun Li
Keyword(s):  
Electrical Conductivity ◽  
Surface Modification ◽  
Polymer Composites ◽  
Structural Integrity ◽  
Epoxy Composites ◽  
Sem Images ◽  
Low Viscosity ◽  
Before And After ◽  
Nanotube Composites

This work investigated and characterized the electrical conductivity of carbon nanotubes (CNT)/polymer composites. Surface modification has been applied to improve the homogeneous dispersion of MWCNTs in epoxy. After treatment, MWCNTs were mixed into low viscosity epoxy matrix at room temperature. Dispersion and structural integrity of MWCNTs before and after surface modification were examined by SEM images. The dispensability of treated MWCNTs and electrical conductivity of nanocomposites are evaluated and also compared with MWCNTs/polymer composites in literature prepared using the same commercial MWCNTs. The electrical conductivity of MWCNTs and MWCNTs/epoxy composites were evaluated by the four-point probe method. The results of electrical property will lay a foundation for establishing the relationship between electrical resistance and strain of MWCNTs/epoxy composites. The results also confirm that reducing CNT agglomerate size can greatly improve the electrical conductivity of composite and decrease the percolation threshold.

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