Investigations on the physical properties of the polycrystalline ZnS thin films deposited by the chemical bath deposition method
JOURNAL OF CRYSTAL GROWTH, cilt.299, sa.1, ss.136-141, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 299 Sayı: 1
- Basım Tarihi: 2007
- Doi Numarası: 10.1016/j.jcrysgro.2006.10.266
- Dergi Adı: JOURNAL OF CRYSTAL GROWTH
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.136-141
- Anahtar Kelimeler: optical properties, X-ray diffraction, chemical bath deposition, zinc sulfide, electrical properties, ZINC-SULFIDE, SPRAY-PYROLYSIS, CDS, PARTICLES
- Çukurova Üniversitesi Adresli: Hayır
Özet
Transparent and polycrystalline zinc sulfide (ZnS) thin films were prepared by the chemical bath deposition (CBD) technique onto glass substrates deposited at 80 degrees C using aqueous solution of zinc acetate, thiourea, triethanolamine and tri-sodium citrate at a pH of about 10.55. Triethanolamine and tri-sodium citrate were used as complexing agents. The thickness of the films, which were calculated from the interference patterns around 400-800 nm maxima and minima wavelengths, varied from 403 to 934 nm in the visible range. UV-visible spectrophotometric measurement showed transperancy from 66% to 87% of the films with a direct allowed energy band gap in the range of 3.79-3.93 eV. X-ray diffraction (XRD) patterns prove crystallinity of deposited films that crystallize in the hexagonal phase of ZnS. The ZnS thin films were characterized by XRD, energy dispersive X-ray analysis (EDX) and optical absorption spectra. The current-voltage characteristic of polycrystalline ZnS films grown by CBD are reported. (c) 2006 Elsevier B.V. All rights reserved.