Induced dielectric behavior in high dense AlxLa1-xTiO3 (x=0.2-0.8) nanospheres

被引：39

作者：

Dastagiri, S. ^{[1
]}

Lakshmaiah, M. V. ^{[1
]}

Naidu, K. Chandra Babu ^{[2
]}

Kumar, N. Suresh ^{[3
]}

Khan, Anish ^{[4
]}

机构：

[1] SK Univ, Dept Phys, Anantapuramu 515003, AP, India

[2] GITAM Deemed Univ, Dept Phys, Bangalore 562163, Karnataka, India

[3] JNTUA, Dept Phys, Anantapuramu 515002, AP, India

[4] King Abdulaziz Univ, Dept Chem, Jeddah 21589, Saudi Arabia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 22期

关键词：

GLUCOSE SENSOR; LATIO3; CONDUCTIVITY; SR;

D O I：

10.1007/s10854-019-02409-3

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The present work focussed on the preparation and characterization of AlxLa1-xTiO3 (x = 0.2-0.8) (ALTO) nanospheres. The phase purity and tetragonal structure was confirmed using the X-ray diffraction patterns. In addition, the dimensions of the ALTO unit cell were decreased with increase of Al-content. The morphological investigations evidenced the formation of spherical grains and particles of nano size. The UV-Visible spectra revealed the increasing trend of band gap (E-g) from 3.341 to 3.378 eV as a function 'x'. Besides, the frequency, and compositional variation of dielectric parameters was described. Subsequently, the space charge polarization, and electrical conduction mechanisms were well understood using the complex dielectric modulus, and impedance spectroscopy. The Cole-Cole plots ensured that the ALTO materials exhibited the semiconducting nature due to the formation of complete semicircular arcs. Moreover, the non-Debye type relaxations were noticed in Cole-Cole plots.

引用

页码：20253 / 20264

页数：12

共 42 条

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