TY - GEN
T1 - Barium titanate and cobalt ferrite nano-particles decorated SICN/MWCNT nanotubes
T2 - Synthesis and microstructural characterization
AU - Bedekar, Vishwas
AU - Singh, Gurpreet
AU - Mahajan, Roop
AU - Priya, Shashank
PY - 2010
Y1 - 2010
N2 - In order to realize self-powered health monitoring and magnetic field sensors, bottom - up design of nanoscale device was investigated. A MWCNT/SiCN nanotube template was developed that has the potential to act as piezoresistive element. Next, a novel nanotube morphology was synthesized that consists of BaTiO3 (BTO) nanoparticles decorated along the surface of SiCN. Monolayer coating of SiCN on MWCNT serves two purposes: (i) modifies the surface wetting characteristics, and (ii) enhances the piezoresistive effect. Investigation of the mechanisms that provide periodic arrangement of BTO on nanotube surface was conducted using HRTEM and contact angle measurements. X-ray Photoelectron Spectroscopy was performed to confirm perovskite phase of BTO. The SiCN/MWCNT approach was further extended to fabricate magnetoelectric nanowire based sensors designs. In this approach a SiCN-NT template was coated with BTO and CoFe2O4 (CFO) nanoparticles. Microstructural studies indicated the presence of piezoelectric (BTO) as well as magnetic (CFO) material on the nanotube surface. Further, studies are required to overcome the problem of electrical contact on a MEMS chip.
AB - In order to realize self-powered health monitoring and magnetic field sensors, bottom - up design of nanoscale device was investigated. A MWCNT/SiCN nanotube template was developed that has the potential to act as piezoresistive element. Next, a novel nanotube morphology was synthesized that consists of BaTiO3 (BTO) nanoparticles decorated along the surface of SiCN. Monolayer coating of SiCN on MWCNT serves two purposes: (i) modifies the surface wetting characteristics, and (ii) enhances the piezoresistive effect. Investigation of the mechanisms that provide periodic arrangement of BTO on nanotube surface was conducted using HRTEM and contact angle measurements. X-ray Photoelectron Spectroscopy was performed to confirm perovskite phase of BTO. The SiCN/MWCNT approach was further extended to fabricate magnetoelectric nanowire based sensors designs. In this approach a SiCN-NT template was coated with BTO and CoFe2O4 (CFO) nanoparticles. Microstructural studies indicated the presence of piezoelectric (BTO) as well as magnetic (CFO) material on the nanotube surface. Further, studies are required to overcome the problem of electrical contact on a MEMS chip.
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U2 - 10.1002/9780470930915.ch2
DO - 10.1002/9780470930915.ch2
M3 - Conference contribution
AN - SCOPUS:78149295065
SN - 9780470927168
T3 - Ceramic Transactions
SP - 19
EP - 28
BT - Advances in Electroceramic Materials II
PB - American Ceramic Society
ER -