CHARACTERISTICS OF LITHIUM LANTHANUM TITANATE THIN FILMS MADE BY ELECTRON BEAM EVAPORATION FROM NANOSTRUCTURED La0.67-xLi 3xTiO3 TARGET
| Autor: | Le Dinh Trong, Nguyen Nang Dinh, Pham Duy Long |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Atmospheric Science
electron beam deposition Materials science Analytical chemistry Ionic bonding chemistry.chemical_element Management Monitoring Policy and Law Oceanography Electrochromic devices Electron beam physical vapor deposition thin film electrolyte Amorphous solid chemistry nanostructured LLTO lcsh:Technology (General) ionic conductivity impedance spectra Ionic conductivity lcsh:T1-995 Lithium Thin film lcsh:Science (General) Waste Management and Disposal Perovskite (structure) lcsh:Q1-390 |
| Zdroj: | ASEAN Journal on Science and Technology for Development, Vol 25, Iss 2, Pp 243-250 (2017) |
| ISSN: | 2224-9028 0217-5460 |
| Popis: | Bulk nanostructured perovskites of La0.67-xLi3xTiO3 (LLTO) were prepared by using thermally ball-grinding from compounds of La2O3, Li2CO3 and TiO2. From XRD analysis, it was found that LTTO materials were crystallized with nano-size grains of an average size of 30 nm. The bulk ionic conductivity was found strongly dependent on the Li+ composition, the samples with x = 0.11 (corresponding to a La0.56Li0.33TiO3 compound) have the best ionic conductivity, which is ca. 3.2 x 10-3 S/cm at room temperature. The LLTO amorphous films were made by electron beam deposition. At room temperature the smooth films have ionic conductivity of 3.5 x 10-5 S/cm and transmittance of 80%. The optical bandgap of the films was found to be of 2.3 eV. The results have shown that the perovskite La0.56Li0.33TiO3 thin films can be used for a transparent solid electrolyte in ionic battery and in all-solid-state electrochromic devices, in particular. |
| Databáze: | OpenAIRE |
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