Determination of sodium migration in sol-gel deposited titania films on soda-lime glass with r.f. glow discharge optical emission spectroscopy

Yuksel B., SAM E. D., AKTAS O. C., Ürgen M. K., CAKIR A. F.

APPLIED SURFACE SCIENCE, cilt.255, sa.7, ss.4001-4004, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 255 Sayı: 7
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.apsusc.2008.10.065
  • Dergi Adı: APPLIED SURFACE SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4001-4004
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Transparent TiO(2) films were produced via sol-gel spin and dip-coating techniques. Soda-lime glass (SLG) and SiO(2) precoated glass were used as substrates. The thin films were characterized by X-ray diffraction (XRD), X-ray reflectometry (XRR), optical profilometer and glow discharge optical emission spectroscopy (GD-OES). Na migration was detected in the amorphous TiO(2) films which are deposited on SLG substrates. In order to prevent sodium migration a barrier layer was introduced between TiO(2) film and glass. The beneficial role of this barrier layer on alkali migration is verified and the mechanism of prevention of migration is proposed relying on the results of GD-OES depth pro. le measurements. (C) 2008 Elsevier B. V. All rights reserved.