Title :
Nickel nanochain composite: An improved terahertz shielding material
Author :
Debanjan Polley;Amit Barh;Anjan Barman;Rajib Kumar Mitra
Author_Institution :
Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098, INDIA
Abstract :
Terahertz (THz) shielding effectiveness (SE) of nickel nanochains (NiNC), multiwalled carbon nanotubes (MWNT) and their composites in poly-vinyl alcohol have been studied in the frequency range of 0.4-1.8 THz at room temperature. NiNC of diameter ~ 300 nm and length ~ 4 μm are synthesized by reducing nickel chloride salt with hydrazine hydrate in ethylene glycol medium. NiNC and MWNT+NiNC composites show 130% and 260% increased SE at 1 THz than MWNT composites, respectively. Such a large increment in SE depicts that NiNC can easily replace the universally known MWNT composites as cost effective materials with higher shielding efficiency for the applications in THz shielding devices.
Keywords :
"Nanoscale devices","Performance evaluation"
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2015 IEEE
DOI :
10.1109/AEMC.2015.7509124
