抄録
We investigated optical properties of mono-dispersed silica with diameters of several hundred nanometers. The mono-dispersed silica particles were formed by the Stober method from tetraethoxysilane (TEOS). Structures and impurities of the silica particles were studied by Fourier Transform Infrared (FT-IR) absorption. Impurities such as hydroxyls were removed by an anneal at temperatures more than 500 C. In addition, the peak position around 1100 cm-1 due to the Si-O bonds was changed to higher frequencies during the anneal. This suggests the structures such as Si-O-Si bond angles of mono-dispersed silica were modified during annealing. These silica particles were easily self-assembled on silicon substrates or glass. The states of the self-assembled structures were observed by an optical microscope, an atomic force microscope, and a scanning electron microscope. Two dimensional or three dimensional close-packed structures with were observed.
| 本文言語 | English |
|---|---|
| ページ | 41-44 |
| ページ数 | 4 |
| 出版ステータス | Published - 2003 10月 20 |
| イベント | Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials - Nagoya, Japan 継続期間: 2003 6月 1 → 2003 6月 5 |
Conference
| Conference | Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials |
|---|---|
| 国/地域 | Japan |
| City | Nagoya |
| Period | 03/6/1 → 03/6/5 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学
- 材料化学