Band gap modification and ferroelectric properties of Bi0.5(Na,K)0.5TiO3-based by Li substitution

Band gap modification and ferroelectric properties of Bi0.5(Na,K)0.5TiO3-based by Li substitution

We report on the reduction of band gap in Bi0.5(Na0.82-xLixK0.18)0.5(Ti0.95Sn0.05)O3 from 2.99 eV to 2.84 eV due to the substitutions of Li+ ions to Na+ sites. In addition, the lithium substitution samples exhibit an increasing of the maximal polarizations from 21.8 to 25.7 μC/cm2. The polarization...

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Bibliographic Details
Main Authors:	Ngo Duc Quan, Vu Ngoc Hung, Nguyen Van Quyet, Hoang Vu Chung, Dang Duc Dung
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2014-01-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.4863092

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