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Deposition and Characterization of Cu 2 ZnSnS 4 Thin Films for Solar Cell Applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bakr, Nabeel Ali Salman, Sabah A. Hameed, Sabreen A. |
| Copyright Year | 2018 |
| Abstract | Copper zinc tin sulfide (CZTS) thin films have been grown on glass substrates at 400 oC by using chemical spray pyrolysis as relatively fast and vacuum-free method. The Spray solutions were prepared with different molar concentrations of copper chloride dihydrate, zinc chloride, tin chloride dihydrate while the concentration of thiourea was kept constant. The thickness of the prepared thin films was about (400 nm) measured by gravimetric method. The structural, optical and electrical properties of the prepared films have been studied using XRD, Raman spectroscopy, UV-Vis-NIR spectroscopy and Hall measurement. The crystallite size of CZTS films was estimated using Scherrer’s formula and it was found that the CZTS thin films have maximum crystallite size of (16.03 nm) at concentration ratio (Cu/(Zn+Sn)=1.4) which is related to the film (CZTS5). Williamson–Hall analysis was carried out for all samples and the crystallite size and microstrain were estimated. Raman shift measurement showed that the main peaks of the films are located at (330-335 cm-1). The absorbance and transmittance spectra were recorded in the wavelength range of (350900) nm in order to study the optical properties. The optical energy gap for allowed direct electronic transition was (1.5-2.1) eV with a high absorption coefficient (α >104 cm-1) and it is suitable for solar cell applications. The conductivity of CZTS films was estimated using Hall measurement and it is found that the CZTS thin films have maximum conductivity of 2.3573(Ω.cm)-1 at concentration ratio (Cu/(Zn+Sn)=1). |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.ripublication.com/ijaer18/ijaerv13n6_32.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
