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Isolation and characterization of nanosheets containing few layers of the Aurivillius family of oxides and metal-organic compounds

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Title Isolation and characterization of nanosheets containing few layers of the Aurivillius family of oxides and metal-organic compounds
 
Creator SREEDHARA, MB
PRASAD, BE
MOIRANGTHEM, M
MURUGAVEL, R
RAO, CNR
 
Subject ELECTRON-MICROSCOPY
EXFOLIATION
FRAMEWORKS
TITANATE
GRAPHENE
Aurivillius oxides
Layered bismuth oxides
Exfoliation
Few-layer metal-organic compounds
Layered phosphonates
Layered copper complexes
 
Description Nanosheets containing few-layers of ferroelectric Aurivillius family of oxides, Bi(2)A(n-1)B(n)O(3n+3) (where A = Bi3+, Ba2+ etc. and B=Ti4+, Fe3+ etc.) with n=3, 4, 5, 6 and 7 have been prepared by reaction with n-butyllithium, followed by exfoliation in water. The few-layer samples have been characterized by Tyndall cones, atomic force microscopy, optical spectroscopy and other techniques. The few-layer species have a thickness corresponding to a fraction of the c-parameter along which axis the perovskite layers are stacked. Magnetization measurements have been carried out on the few-layer samples containing iron. Few-layer species of a few layered metal-organic compounds have been obtained by ultrasonication and characterized by Tyndall cones, atomic force microscopy, optical spectroscopy and magnetic measurements. Significant changes in the optical spectra and magnetic properties are found in the few-layer species compared to the bulk samples. Few-layer species of the Aurivillius family of oxides may find uses as thin layer dielectrics in photovoltaics and other applications. (C) 2014 Elsevier Inc. All rights reserved.
 
Publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
 
Date 2016-01-15T04:30:10Z
2016-01-15T04:30:10Z
2015
 
Type Article
 
Identifier JOURNAL OF SOLID STATE CHEMISTRY, 224(SI)21-27
0022-4596
1095-726X
http://dx.doi.org/10.1016/j.jssc.2014.02.020
http://dspace.library.iitb.ac.in/jspui/handle/100/17761
 
Language en