| Project/Area Number |
04453066
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
無機工業化学・無機材料工学
|
|---|
| Research Institution | Tokyo Institute of Technology |
|---|
Principal Investigator |
YAMANE Masayuki Tokyo Institute of Technology, Inorganic Materials, Profesor,, 工学部, 教授 (40016382)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YANO Tetsuji Tokyo Institute of Technology, Inorganic Materials, Research Associate, 工学部, 助手 (90221647)
YASUMORI Atsuo Tokyo Institute of Technology, Inorganic Materials, Associate Profesor, 工学部, 助教授 (40182349)
SHIBATA Shiuichi Tokyo Institute of Technology, Inorganic Materials, Associate Profesor, 工学部, 助教授 (00235574)
|
|---|
| Project Period (FY) |
1992 – 1993
|
| Project Status |
Completed (Fiscal Year 1993)
|
| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1993: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1992: ¥5,500,000 (Direct Cost: ¥5,500,000)
|
|---|
| Keywords | Nonlinear Optical Glasses / Cds-Doped Glasses / ObS-Doped Glasses / Sol-Gel Process |
|---|
| Research Abstract |
For the purpose of obtaining nonlinear optical glasses with high third order non-linear susceptibility, the preparation of sodium-borosilicate glasses containing a large number of spherical semiconductor particles of diameter about 10nm by sol-gel process has been elaborated.
The optimum temperature of the treatment of gels for the oxidation of cadmium acetate precursor to cadmium oxide was in the range 400ﾟ-420ﾟC.The most suitable temperature for the treatment by hydrogen sulfide to CdO into CdS was found in the range 120ﾟ-150ﾟC.The nonlinear susceptibility of the glass prepared under these conditions was much higher than those of glasses prepared in the previous study.
The preparation of PbS-doped nonlinear optical glasses by sol-gelprocess has benn conducted fucusing the control of particle size distridution of precursor lead silicate gels in a saturated aqueous solution of lead acetate at 40ﾟC and cooling down to 30ﾟC, followed by the treatment of the gel with acetone. The size distribution of thus formed lead acetate particles was quite narrow and remained unchanged by the subsequent treatments for the conversion into lead oxide and sulfide, suggesting that the size distribution of CdS particle, and therefore the nonlinear susceptibility of CdS-doped glasses, can befurther improved by applying the similar mathod to gels of cadmium acetate system.
|
