Aquo-organic sol based F-doped SnO2 (Sn : F = 90 : 10) coatings on glass

• Autorzy: Biswas, P.K. , Dua, L. , Chaudhuri, A.de T.
• Języki publikacji: EN

Abstrakty

EN

Aqueous precursor of F-doped SnO2 was prepared starting with hydrated Sn (IV) chloride, ammonium fluoride and water. Polyvinyl alcohol (Mol. Wt, 22000), a sol stabilizer was used for better adherence to glass substarte. Both the dipping and the spinning techniques were used to deposit layers of different thicknesses (200 to 650 š 10 nm). Air drying and subsequent curing at ~ 450°C in air yielded tetragonal cassiterite phase of SnO2 along with tetragonal Sn phase. Percentage of visible transmission of the spin coated samples was relatively high (~ 80 %). Incorporation of polyvinyl alcohol in the aqueous precursor minimized etching phenomenon by fluoride ion as revealed by the SEM pictures. Surface of the developed films seemed to be porous; the spin coated sample was relatively less porous. Refractive index (R.I.) of the dip coated samples was relatively smaller (range, 1.650 - 1.803) while the spin coated samples had the R. I. values in the range 1.670-1.823. Sheet resistance of the spin coated films was in the range, 3.3-1300 k? / while it was 1.4 - 2500 k? / in the case of dip coated samples.

Słowa kluczowe

PL

fluor domieszkowany tlenkiem cyny; elektronowa mikroskopia skaningowa

EN

fluorine-doped tin oxide; sol-gel; SEM; scanning electron microscopy; polyvinyl alcohol

• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 2/1
• Strony: 367--374
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Biswas, P.K.

autor

Dua, L.

autor

Chaudhuri, A.de T.

• Sol-Gel Division, Central Glass and Ceramic Research Institute, Kolkata 700 032, India,

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