Atomic level microstructures of near-infrared wide-band glass phosphors and increase of luminescence efficiency
| Project/Area Number |
24760008
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Applied materials science/Crystal engineering
|
|---|
| Research Institution | Aoyama Gakuin University (2013)
Nagoya University (2012) |
|---|
Principal Investigator |
FUCHI SHINGO 青山学院大学, 理工学部, 准教授 (60432241)
|
|---|
| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Keywords | ガラス蛍光体 / 発光効率 / 周辺局所構造 / 中距離構造 / ＥＸＡＦＳ / ＸＲＤ |
|---|
| Research Abstract |
In this study, we investigated the relationship between the luminescence efficiency, local structures around rare-earth ions, and the glass structures of matrix glasses for the realization of high-luminescence-efficiency near-infrared glass phosphors. By extended X-ray absorption fine structure measurements, it was revealed that the first neighbor atom was Oxygen. In the case of the second neighbor atom was Boron, luminescence efficiency decreased. By high-energy X-ray diffraction measurements, it was revealed that the glass phosphor which has medium-range structures in the matrix showed higher luminescence efficiency.
|
Report
(3 results)
Research Products
(23 results)
