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Author Dan, Kaustabh ♦ Datta, Alokmay
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ABSORPTION SPECTROSCOPY ♦ FLUORESCENCE SPECTROSCOPY ♦ FOURIER TRANSFORMATION ♦ GOLD ♦ INFRARED SPECTRA ♦ MATRIX MATERIALS ♦ MORPHOLOGY ♦ NANOPARTICLES ♦ POLARIZATION ♦ SYNTHESIS ♦ TEMPERATURE RANGE 0273-0400 K ♦ TEXTURE ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ ULTRAVIOLET SPECTRA ♦ VISIBLE SPECTRA
Abstract The present study describes the in-situ synthesis of Au nano particles (Au-NP) in the room temperature nematic liquid crystalline (LC) substance MBBA (N-4 methoxybenzylidene 4 butylaniline) without any external reducing or stabilizing agents. UV-Visible absorption and fluorescence spectroscopy clearly show formation of Au-NP within the LC matrix through the plasmon resonance peak for the NPs and EDAX measurements confirm this formation. Transmission electron Microscopy shows co-existence of spherical and prismatic NPs. FTIR spectroscopy shows a considerable shift in the C=N stretch band pointing to the location of the growth centre of the NPs. Polarization microscopy data indicates a definite phase ordering and texture transformation from Nematic to highly ordered smectic mesophase.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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