Effects of Li and Fe doping on dielectric relaxation behavior in (Li, Fe)-doped NiO ceramics
作者： Prasit Thongbai , Teerapon Yamwong , Santi Maensiri
DOI: 10.1016/J.MATCHEMPHYS.2010.03.061
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摘要: Abstract High permittivity (Li, Fe)-doped NiO (LFNO) ceramics are prepared by a simple PVA sol–gel route and their dielectric properties investigated as functions of temperature frequency. It is found that the concentrations Li Fe have strong influences on microstructure LFNO ceramics. Two thermally activated relaxations observed in Li0.05Fe0.10Ni0.85O ceramic sample with activation energies 0.448 0.574 eV for high- low-frequency relaxations, respectively. By using complex impedance analysis, it believed high-frequency relaxation closely related to transport inside grains, might be ascribed interfacial polarization at interface layers grain boundaries and/or NiFe2O4 secondary phase layers.
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sci-hub.se 参考文章(22)
Guo-Ju Chen, Yu-Jen Hsiao, Yee-Shin Chang, Yin-Lai Chai, Structure and high dielectric permittivity of Li0.01M0.05Ni0.94O (M = V and W) ceramics Journal of Alloys and Compounds. ,vol. 474, pp. 237- 240 ,(2009) , 10.1016/J.JALLCOM.2008.06.053
Pradip Kumar Jana, Sudipta Sarkar, B. K. Chaudhuri, Low loss giant dielectric and electrical transport behavior of KxTiyNi1−x−yO system Applied Physics Letters. ,vol. 88, pp. 182901- ,(2006) , 10.1063/1.2190908
Bo Cheng, Yuan-Hua Lin, Ao Mei, Jing-Nan Cai, Ce-Wen Nan, Jinliang He, Effects of grain modification on the dielectric properties of A0.03Ti0.10Ni0.87O (A:K+,Mg2+,Y3+) ceramics Applied Physics Letters. ,vol. 92, pp. 142903- ,(2008) , 10.1063/1.2900966
Yuanhua Lin, Lei Jiang, Rongjuan Zhao, Ce-Wen Nan, High-permittivity core/shell stuctured NiO-based ceramics and their dielectric response mechanism Physical Review B. ,vol. 72, pp. 014103- ,(2005) , 10.1103/PHYSREVB.72.014103
Prasit Thongbai, Teerapon Yamwong, Santi Maensiri, The sintering temperature effects on the electrical and dielectric properties of Li0.05Ti0.02Ni0.93O ceramics prepared by a direct thermal decomposition method Journal of Applied Physics. ,vol. 104, pp. 074109- ,(2008) , 10.1063/1.2990768
Yuan-Hua Lin, Ming Li, Ce-Wen Nan, Jingfeng Li, Junbo Wu, Jinliang He, Grain and grain boundary effects in high-permittivity dielectric NiO-based ceramics Applied Physics Letters. ,vol. 89, pp. 032907- ,(2006) , 10.1063/1.2227636
Yuanhua Lin, Jianfei Wang, Lei Jiang, Yu Chen, Ce-Wen Nan, High permittivity Li and Al doped NiO ceramics Applied Physics Letters. ,vol. 85, pp. 5664- 5666 ,(2004) , 10.1063/1.1827937
Suwat Tangwancharoen, Prasit Thongbai, Teerapon Yamwong, Santi Maensiri, Dielectric and electrical properties of giant dielectric (Li, Al)-doped NiO ceramics Materials Chemistry and Physics. ,vol. 115, pp. 585- 589 ,(2009) , 10.1016/J.MATCHEMPHYS.2009.01.004
Prasit Thongbai, Sarawut Pongha, Teerapon Yamwong, Santi Maensiri, Effects of Fe, Ti, and V doping on the microstructure and electrical properties of grain and grain boundary of giant dielectric NiO-based ceramics Applied Physics Letters. ,vol. 94, pp. 022908- ,(2009) , 10.1063/1.3072356
D. C. Sinclair, A. R. West, Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance Journal of Applied Physics. ,vol. 66, pp. 3850- 3856 ,(1989) , 10.1063/1.344049