Optical properties of self-assembled silica particles

Y. Tatara, H. Sato, H. Nishikawa

研究成果: Paper査読

2 被引用数 (Scopus)

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 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 12003 6 5

Conference

ConferenceProceedings of the 7th International Conference on Properties and Applications of Dielectric Materials
国/地域Japan
CityNagoya
Period03/6/103/6/5

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

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