Isothermal transient ionic current as a characterization technique for ion transport in Ta2O5
Isothermal transient ionic current as a characterization technique for ion transport in Ta2O5
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DOI：
10.1063/1.370694
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发表时间：
1999-06-15
影响因子：
3.2
通讯作者：
Niklasson, GA
中科院分区：
文献类型：
--
作者：
Mattsson, MS;Niklasson, GA
等温瞬态离子电流（ITIC）技术应用于由化学气相沉积法制备的β-Ta 2 O 5样品。可以从测量中提取材料中的迁移率、电导率和质子数。锂离子电化学插入到β-Ta 2 O 5，它被发现，ITIC方法可以分离的贡献，从质子和锂离子导电的方式，这两个物种的迁移率可以提取。此外，格子气模型[A. J. Berlinsky，W. G.昂鲁R. McKinnon和R. R. Haering，Solid State Commun. 31，135（1979）]来描述Li相互作用过程。该模型表明，锂离子在材料中倾向于均匀分布，而不是相互吸引并形成团簇。(C)1999年美国物理学会。[S0021-8979（99）00812-9].
The Isothermal Transient Ionic Current (ITIC) technique was applied to beta-Ta2O5 samples made by chemical vapor deposition. The mobility, conductivity, and number of protons in the material could be extracted from the measurements. Li ions were intercalated electrochemically into the beta-Ta2O5 and it was found that the ITIC method could separate the contribution from proton and Li ion conduction in such a way that the mobilities of both species could be extracted. Furthermore, the lattice-gas model [A. J. Berlinsky, W. G. Unruh, W. R. McKinnon, and R. R. Haering, Solid State Commun. 31, 135 (1979)] was employed to describe the Li interaction process. This model showed that the Li ions tended to distribute uniformly, rather then to attract each other and form clusters in the material. (C) 1999 American Institute of Physics. [S0021-8979(99)00812-9].