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Effect of Zn:Se Ratio on the Properties of Sprayed ZnSe Thin Films

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Öztaş M., Bedir M., Bakkaloğlu Ö., Ormancı R.
Acta Physica Polonica A
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2005
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vol. 107
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issue 3
525-534
EN
The effect of Zn:Se ratio on the photoconducting properties of ZnSe thin films has been studied. The ZnSe thin films have been deposited onto glass substrates by the spray pyrolysis method, the substrate temperature kept at 430ºC using mixed aqueous solutions of ZnCl_2 and SeO_2 with different Zn:Se ratios. Their electrical, structural, and photoconductivity properties have been studied. The values of optical bandgap have been determined from the absorption spectra.
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Effect of Boric Acid Content on the Structural and Optical Properties of MnS Films Prepared by Spray Pyrolysis Technique

100%
Bedır M., Öztaş M., Çelik S., Özdemır T.
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vol. 126
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issue 3
840-845
EN
Boron doped MnS films were obtained by the spray pyrolysis method using the boric acid (H_3BO_3) as dopant source at a substrate temperature of 350°C. The spray pyrolysis method has a wide range of application areas with a low cost well-suited for the manufacture of solar cells. The properties of boron doped MnS films were investigated as a function of doping concentration. The X-ray analysis showed that the films were polycrystalline fitting well with a hexagonal structure and have preferred orientation in the [002] direction. The optical band gap of the undoped and boron doped MnS films were found to vary from 3.38 to 3.20 eV. The changes observed in the energy band gap and structural properties of the films related to the boric acid concentration are discussed in detail.
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