10.1021/acscombsci.6b00027.s001
Shingo Maruyama
Shingo
Maruyama
Osamu Kubokawa
Osamu
Kubokawa
Kohei Nanbu
Kohei
Nanbu
Kenjiro Fujimoto
Kenjiro
Fujimoto
Yuji Matsumoto
Yuji
Matsumoto
Combinatorial Synthesis of Epitaxial LiCoO<sub>2</sub> Thin Films on SrTiO<sub>3</sub>(001) via On-Substrate Sintering
of Li<sub>2</sub>CO<sub>3</sub> and CoO by Pulsed Laser Deposition
American Chemical Society
2016
Epitaxial LiCoO 2
film
LiCoO 2
bulk ceramics process
SrTiO
source
Li 2 CO 3
capacity
deposition
substrate
PLD
2016-04-28 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Combinatorial_Synthesis_of_Epitaxial_LiCoO_sub_2_sub_Thin_Films_on_SrTiO_sub_3_sub_001_via_On_Substrate_Sintering_of_Li_sub_2_sub_CO_sub_3_sub_and_CoO_by_Pulsed_Laser_Deposition/3320494
High-quality single-phase epitaxial
LiCoO<sub>2</sub> thin films
are synthesized on 0.5 wt % Nb-doped SrTiO<sub>3</sub>(001) substrates
by nanoscale alternate deposition of Li<sub>2</sub>CO<sub>3</sub> and
CoO as Li and Co sources, respectively, using a combinatorial pulsed
laser deposition (PLD) technique. The formation of LiCoO<sub>2</sub> thin films from these two sources results from the sintering reaction
between Li<sub>2</sub>CO<sub>3</sub> 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 LiCoO<sub>2</sub> 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
LiCoO<sub>2</sub>.