| Budget Amount *help |
¥41,990,000 (Direct Cost: ¥32,300,000、Indirect Cost: ¥9,690,000)
Fiscal Year 2016: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥22,100,000 (Direct Cost: ¥17,000,000、Indirect Cost: ¥5,100,000)
|
|---|
| Outline of Final Research Achievements |
We have found that electrical conductivity (mobility) greatly changes with the application of external force to the organic semiconductor crystal, and proved that this phenomenon depends on crystal structure change due to the external force. The detailed correlation between the external stress and the structural property is analyzed by X-ray structural analysis, Hall effect measurement, temperature dependence measurement and calculation of molecular oscillation amplitude. It turned out that the effect is dominantly attributed to reduced molecular vibration rather than t shrinking the intermolecular distance. Based on the obtained physical property, we developed a technology to build a strain sensor with the single-crystal semiconductor films. We found that the sensitivity is more than one-order-of-magnitude higher than conventional devices, indicating definite advantage of the present organic single-crystal strain sensors.
|
