| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
|---|
| Outline of Final Research Achievements |
A non-equilibrium two-dimensional plasma was induced in a small cavity between an insulating electrode and a glass substrate by introducing a gas in a liquid phase. A pre-sintered porous-TiO2/FTO double layered glass substrate was set below the electrode for discharge to face each other in the Titaniumtetraisopropoxide solution. The oxidization process was promoted with irradiating a plasma to the precursor spread on a glass substrate by a capillarity.
After the plasma treatment, the surface of the TiO2 layer was found to be porous with the particle size of 10 to 20 nm, which is almost comparable to a typical dye-sensitized solar cell. The conversion efficiency reached as high as 3.7 % for the cell prepared under N2/O2 mixture gas. We found that the active plasma species originated from N2 gas played an important role in the oxidation and crystallization in the film formation to enhance the necking process between TiO2 particles.
|
