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Combinatorial Synthesis of Epitaxial LiCoO2 Thin Films on SrTiO3(001) via On-Substrate Sintering of Li2CO3 and CoO by Pulsed Laser Deposition.
- Source :
-
ACS combinatorial science [ACS Comb Sci] 2016 Jun 13; Vol. 18 (6), pp. 343-8. Date of Electronic Publication: 2016 May 06. - Publication Year :
- 2016
-
Abstract
- High-quality single-phase epitaxial LiCoO2 thin films are synthesized on 0.5 wt % Nb-doped SrTiO3(001) substrates by nanoscale alternate deposition of Li2CO3 and CoO as Li and Co sources, respectively, using a combinatorial pulsed laser deposition (PLD) technique. The formation of LiCoO2 thin films from these two sources results from the sintering reaction between Li2CO3 and CoO, which is commonly used in a bulk ceramics process, but simultaneously takes place on the substrate during the deposition at a temperature of 550 °C. Electrochemical characterization reveals that the charge/discharge property of LiCoO2 thin films as a cathode is severely sensitive to the nominal Li:Co composition ratio. The best-quality film shows an excellent discharge capacity comparable with the characteristic capacity of LiCoO2.
Details
- Language :
- English
- ISSN :
- 2156-8944
- Volume :
- 18
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- ACS combinatorial science
- Publication Type :
- Academic Journal
- Accession number :
- 27124559
- Full Text :
- https://doi.org/10.1021/acscombsci.6b00027