Electrical transport behavior of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5 (Ba0.7Ca0.3)TiO3 thin film grown on LaNiO3/Si by pulsed laser deposition

被引：14
作者：
Bhardwaj, Chandan
Kaur, Davinder [1 ]
机构：
[1] Indian Inst Technol, Dept Phys, Funct Nanomat Res Lab, Roorkee 247667, Uttar Pradesh, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 595卷
关键词：
Ferroelectrics; Thin films; Laser deposition; Electrical transport;
D O I：
10.1016/j.jallcom.2014.01.160
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The temperature and voltage-polarity dependent leakage current behavior of pulsed laser deposited Ag/ 0.5Ba(Zr0.2Ti0.8)O-3-0.5(Ba0.7Ca0.3)TiO3/LaNiO3 thin-film capacitor is thoroughly investigated. At fields below 50 kV/cm, the leakage current is Ohmic across both the interfaces. The negative differential resistance behavior is observed in low fields at 300 K. The space charge limited current, with distinct trap-filling and trap-filled regions, dominates positive bias current at medium fields (60-150 kV/cm) and higher temperatures, whereas, the Poole-Frenkel Emission governs the conduction above150 kV/cm. The onset field of Poole-Frenkel Emission decreases with the increasing temperature. Schottky Emission controls the negative bias current at higher fields with 0.43 eV zero field barrier height. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：158 / 163
页数：6
相关论文
共 25 条
[1]   Leakage current behavior in lead-free ferroelectric (K, Na)NbO3-LiTaO3-LiSbO3 thin films [J].
Abazari, M. ;
Safari, A. .
APPLIED PHYSICS LETTERS, 2010, 97 (26)
[2]   Electrical properties and leakage current behavior of un-doped and Ti-doped lea zirconate thin films synthesized by sol-gel method [J].
Alkoy, Ebru Mensur ;
Shiosaki, Tadashi .
THIN SOLID FILMS, 2008, 516 (12) :4002-4010
[3]   Conduction mechanism of sputtered BaTiO3 film on Ni substrate [J].
Bao, Lijie ;
Ryley, James ;
Li, Zhigang ;
Wilker, Charles ;
Zhang, Lei ;
Reardon, Damien ;
Opila, Robert .
JOURNAL OF APPLIED PHYSICS, 2009, 106 (11)
[4]   Highly tunable compositionally graded (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 multilayer with low temperature capacitance coefficients [J].
Bhardwaj, Chandan ;
Daniel, B. S. S. ;
Kaur, Davinder .
MATERIALS LETTERS, 2012, 87 :172-175
[5]   Pulsed laser deposition and characterization of highly tunable (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 thin films grown on LaNiO3/Si substrate [J].
Bhardwaj, Chandan ;
Daniel, B. S. S. ;
Kaur, Davinder .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2013, 74 (01) :94-100
[6]   Relaxor characteristics of highly tunable lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 thin film grown on LaNiO3/Si by pulsed laser deposition [J].
Bhardwaj, Chandan ;
Kaur, Davinder .
CURRENT APPLIED PHYSICS, 2012, 12 (05) :1239-1243
[7]   Analysis of leakage current conduction phenomenon in thin SrBi2Ta2O9 films grown by excimer laser ablation [J].
Bhattacharyya, S ;
Laha, A ;
Krupanidhi, SB .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (07) :4543-4548
[8]   Temperature-dependent leakage current behavior of epitaxial Bi0.5Na0.5TiO3-based thin films made by pulsed laser deposition [J].
Hejazi, M. M. ;
Safari, A. .
JOURNAL OF APPLIED PHYSICS, 2011, 110 (10)
[9]   Structure, dielectric, ferroelectric, and optical properties of (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 thin films prepared by sol-gel method [J].
Lin, Yanting ;
Wu, Guangheng ;
Qin, Ni ;
Bao, Dinghua .
THIN SOLID FILMS, 2012, 520 (07) :2800-2804
[10]   Large Piezoelectric Effect in Pb-Free Ceramics [J].
Liu, Wenfeng ;
Ren, Xiaobing .
PHYSICAL REVIEW LETTERS, 2009, 103 (25)
123