Formation of fractal-like thin-film structures and their potential functions by atmospheric-pressure post processing
| Project/Area Number |
25600124
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Plasma electronics
|
|---|
| Research Institution | The University of Shiga Prefecture (2014)
Kyoto University (2013) |
|---|
Principal Investigator |
SAKAI Osamu 滋賀県立大学, 工学部, 教授 (30362445)
|
|---|
| Project Period (FY) |
2013-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Keywords | プラズマ加工 / ナノ材料 / 自己組織化 |
|---|
| Outline of Final Research Achievements |
In this study, we performed hydrazine generation by atmospheric-pressure microplasmas, and reduction reaction of metallic ions in the aqueous solution was observed, leading to formation of fractal-like Ag structures in a self-assembly process. Hydrazine generation was confirmed by ultra-violet ray absorption spectroscopy, which gave us estimated values of its density and optimization of the generation process. Using this hydrazine, after reduction reactions in the silver-nitrate solution, we observed fractal-like Ag-nanoparticle network structures whose fractal dimension was 1.6-1.9. Their electric properties were conductive or isolated, which indicates that this process is around the percolation threshold; the structure was partially transparent and has possibilities for future flexible transparent conductive films. Their optical properties include some abnormal absorption in the mid-infrared ray region which was not predicted from their chemical constituents.
|
Report
(3 results)
Research Products
(8 results)
