Synthesis, structural and transport properties of Li-doped molybdenum and vanadium oxide nanocrystalline films

被引：0

作者：

El-Desoky, M. M. ^{[1
]}

Ibrahim, F. A. ^{[2
]}

机构：

[1] Suez Canal Univ, Fac Sci, Dept Phys, Suez, Egypt

[2] Suez Canal Univ, Fac Educ, Dept Phys, Al Arish, Egypt

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2011年 / 59卷 / 03期

关键词：

TEM; Density; Vanadium and molybdenum nanocrystalline films; Electrical conductivity; SPH; CATHODE MATERIALS; ANODE MATERIAL; LITHIUM; LIVMOO6; BATTERIES; CAPACITY;

D O I：

10.1007/s10971-011-2537-1

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The aim of this study was to determine an influence of lithium excess in nanocrystalline xLi(2)O-(80 - x)V2O5-20MoO(3), nH(2)O (0 a parts per thousand currency sign x a parts per thousand currency sign 15 mol.%) on their transport and structural properties. The obtained nanorods have width of 8-24 nm with lengths up to 200 nm. The density of the samples decreases with increasing Li content. The electrical conductivity shows that all samples are semiconductor and decreases with increasing Li content. From the best fits, reasonable values of various small polaron hopping parameters were obtained. The density of state N(E (F) ) values were evaluated and found to vary from 2.76 to 11.14 x 10(21) eV(-1) cm(-3). The values of optical phonon frequency (nu (o) ) were obtained to be 1.36-1.61 x 10(13) Hz. The electrical conduction at T > theta(D)/2 was due to non-adiabatic SPH.

引用

页码：629 / 634

页数：6

共 30 条

[1] Structural and transport properties of Li-intercalated vanadium pentoxide nanocrystalline films [J].