| Project/Area Number |
25887027
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Gifu University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2013-08-30 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Keywords | スズ半導体 / 同素変態 / スズ半導体検出器 / α-Snへの相転移 / 相転移 / 結晶成長 |
|---|
| Outline of Final Research Achievements |
Tin is stable as a metal at normal temperature which is called by beta-tin. beta-tin transforms to alpha-tin at low temperature. alpha-tin is semi-conductor which has smaller band-gap than Germanium or Silicon. In this study, experiments of allotropic transformation were carried out as a basic research for tin detector. The process of allotropic transformation was observed, and a transformation rate was surveyed under some different conditions about temperature, pressure, and a seed crystal. We found semi-conductor, InSb, with a lattice constant close to alpha-tin was suitable as a seed crystal. Experiments by changing temperature from -40 ℃ to -5 ℃ by 5 degree shows a transformation process becomes large at －40 ℃. In addition, the process of tin disease is suppressed by applying high pressure.
|
