Fabrication and Optical Characterization of CdSe Thin Films Grown by Chemical Bath Deposition

• Authors: İ. Kariper , Ö. Bağlayan , F. Göde
• Languages of publication: EN

Abstracts

EN

Cadmium selenide thin films with different pH values (pH = 10, 11, 12 and 13) are produced on glass substrates at 50°C for 3 h by chemical bath deposition technique. The structural, morphological and optical properties of the films are characterized by X-ray diffraction, scanning electron microscopy and optical absorption spectroscopy, respectively. The obtained films have hexagonal structure. The optical transparency of the films varies between 85% and 98% at wavelength of λ = 550 nm. The scanning electron microscopy studies show that the film deposited at pH = 10 exhibits the formation of nanorods in the width range from 1.8 μm to 10.9 μm and length range from 20.0 μm to 85.5 μm. The optical properties of the films are determined by measuring transmittance and absorbance characteristics which are used to find the optical band gap energy, refractive index, extinction coefficient and real dielectric constant. The band gap width of the films increases from 1.70 eV to 2.30 eV with increasing pH values. The refractive index of the film at pH = 10 is found as 1.54.

Keywords

EN

68.37.Hk; 68.55.-a; 78.20.Ci; 81.10.Dn

Discipline

• 81.10.Dn: Growth from solutions
• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
• 68.37.Hk: Scanning electron microscopy (SEM) (including EBIC)
• 68.55.-a: Thin film structure and morphology(for methods of thin film deposition, film growth and epitaxy, see 81.15.-z)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-219-B-221

Dates

published

2015-8

Contributors

author

İ. Kariper

• Erciyes University, Primary Education Department, Kayseri, Turkey

author

Ö. Bağlayan

• Anadolu University, Physics Department, Eskişehir, Turkey

author

F. Göde

• Mehmet Akif Ersoy University, Physics Department, Burdur, Turkey

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Identifiers

DOI

10.12693/APhysPolA.128.B-219