The optical properties of ultra-thin films fabricated by layer-by-layer adsorption process depending on dipping time

Shiro Fujita, Seimei Shiratori

研究成果: Conference article査読

17 被引用数 (Scopus)

抄録

The layer-by-layer (LBL) self-assembled polyelectrolytes adsorption process is a very slow process. For the fabrication of low-cost application, fabrication time must be decreased. In this work, we measured optical properties of poly(acrylic acid) (PAA)/poly(allylamine hydrochloride) (PAH) thin films depending on deposition time and added impurities. As dipping time was short from 900 s to 180 s, thickness was almost the same. The reason for this was that adsorption quantity was almost the same between 900 s and 180 s from frequency shift of the quartz crystal microbalance measurement. When dipping time was 900 s and 180 s, the refractive index dispersion curves were different before HCl treatment. However, the refractive index dispersion curves were almost the same after HCl treatment. The total fabrication time of the anti-reflection (AR) film decreased from about 6 h (dipping time 900 s) to 2 h (dipping time 180 s), three times faster. Luminous reflection of the film decreased from 0.5 to 0.2, performing 2.5 times better. We propose a high-performance AR film fabrication method for LBL process by the optimization of the film thickness.

本文言語English
ページ(範囲)54-60
ページ数7
ジャーナルThin Solid Films
499
1-2
DOI
出版ステータスPublished - 2006 3月 21
外部発表はい
イベントProceedings of the Sixth International Conference on Nano-Molecular Electronics (ICNME 2004) -
継続期間: 2004 12月 152004 12月 17

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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