| Budget Amount *help |
¥47,450,000 (Direct Cost: ¥36,500,000、Indirect Cost: ¥10,950,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2014: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000)
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| Outline of Final Research Achievements |
In this study, I targeted electric field accumulation and observation of giant thermopower of one dimensional electron gas (1DEG) by AFM lithography technique utilizing an electrochemical redox reaction between H+/OH- ions in the nanoporous glass and oxide semiconductors. Although I succeeded AFM lithography of SrTiO3-1DEG since the resultant shape suggested 1DEG formation, the thermopower could not be measured due to the low stability of the resultant 1DEG. Therefore, I searched more appropriate materials, which show stable redox reaction. As a result, I observed several stable reversible redox reactions such as insulating VO2 - metal HxVO2, insulating SrCoO2.5 - metal SrCoO3, and insulating WO3 - metal HWO3 by using H+/OH- ions in the nanoporous glass. These results appeared on Journal papers, newspapers, and TV. Unfortunately 1DEG has not been realized in this study duration, I think that 1DEG can be realized by AFM lithography of the above materials near future.
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