- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
THE EFFECT OF C u AND Sn ON SOME PHYSICAL PROPERTIES OF CdS THIN FILMS PREPARED BY SPRAY PYROLYSIS | ||
| Journal of University of Anbar for Pure Science | ||
| Article 17, Volume 1, Issue 3, 2007, Pages 70-79 PDF (434.28 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.37652/juaps.2007.15604 | ||
| Author | ||
| HAMID S. AL- JUMAILI* | ||
| Department of Physics - College of Science - University of Anbar | ||
| Abstract | ||
| In this investigation, thin films of CdS doped with Cu and Sn were prepared on glass substrate using spray pyrolysis techniques. The X-ray diffraction results obtained that the films are polycrystalline and having many phases depends on the doping type. The optical properties of the prepared films were studied in the range of wavelength (300-800)nm. The analysis of the absorption spectra of these films indicates that the films are of direct energy gape of values in the range (1.3-2.5)eV, depending on the type and concentration of the doping .The measurement of refractive index (n) and extinction coefficient (K) obtained that, they were having a changed values in the VIS region with doping concentration. The electrical properties of the prepared films were also studied, it is found that the films having a two activation energies. For 7mass%Sn E1act equal 0.164eVat the temperature interval (295-325)K and E2act equal 0.861 eV in the temperature range (325-425)K. Whereas at 25 mass%Sn,E1act equal 0.108eVin the range (295-370)K and E2act equal 0.542eV in the range (370-450)K. from Hall experiment found that all thin films which doped by Cu and Sn are given P-type. | ||
| Keywords | ||
| CdS thin films; Spray Pyrolysis; Sn doping; Optical | ||
| References | ||
|
1-Violeta P. and Horea I.(2006) “Optical properties of CdS-CuxS thin films deposited on glass substrate by spray pyrolysis” chalcogenide lettersVol.3,No.9 pp.67-72.
2-Kwok H.L and Chauy C.,(1980) “carrier density and mobility in Cdx Zn1-xS chemically sprayed films” .Thin Solid Films, 66,pp303-309.
3-Slawh G.G., monookian W.Z. and Abdul-Ghafor W.A.S.,(1991) “Optical and electrical properties of CdS thin films prepared by spraying pyrolysis technique”. J.Math.phys.12, No.1,Iraqi Soc.of Phys.and Math.pp.91-97.
4-Mohamed D.(1985) “Sprayed CdS-Cu2S.solaer cells: structural and chemical properties of airless CdS and CdZnS layers”. Solar Cell. Vol. 15 pp.319-327.
5-Sunny M. Mukerjell P.S,and Vijayakumar K.P.,(1995), “Characterization of spray pyrolysed CdS thin films doped with Cu” Jap.J.Appl.Phys Vol.34,pp.4940-4944.
6-Sima M., Enculescu I.,Ioncea A.,Visan T.,and Trautmann C.,(2004), “Manganese and copper CdS nanowire arrays preparation” Chalcogenide letters Vol.10,No.10,pp.119-124.
7-Lokhande C.D.,and Pawar S.H.,(1982) “Optical and transport properties of chemical bath deposited CdS: Al films.” ,Solid State Communications, Vol.44,No.8,pp.1137-1139.
8-Rubin.Faltan M., (2001) “Electrical properties of Er-doped CdS thin films”. Superficies Vacio, 13, pp.130-133.
9-Padam G.K., Mathotra G.L.,and Rao S.U.M.,(1988) “Studies on solution-grown thin films of ZnxCd1-xS”. J.Appl.Phys. Vol.63.No.3, pp.770-774.
10-Nadhim A.,Abdul-Hussein and Salwa M.Oda,(1994) “The optical and electrical properties of Cd0.75Zn0.25S thin films produced by spray pyrolysis technique doped with tin”. Basrah J.Sci., A, Vol.12, No.2,pp.29-40.
11-Ayush K.and Shashi B.,(2006), “Electroluminescence studies of chemically deposited (Zn-Cd)S:Cu,F films”. Cryst. Res. Tech. 41.No. 7,pp.689-697.
12-Hamid S.AL-Jumaili, (2007) “Optical properties of sprayed pyrolysis ZnxCd1-xS thin films doped with Cu”. J. college of Education University of Mustansiriya,No.3.pp.570-582.
13-Xuguang Li.,Wenyi Li and Xiaobing D., (2006) “ Effect of growth process on structural and optical properties of chemical bath deposition cadmium sulfide thin films”. Jap. J. Appli. Phys. Vol.45, No.12, pp.9108-9110.
14-Acosta, Dwight R., Carlos. R.M., Arturo I. M.,and Arturo M., (2004) “Structural evolution and optical characterization of indium doped cadmium sulfide thin films obtained by spray pyrolysis for different substrate temperatures”. Solar Energy Materials and Solar Cell ,82 pp. 11-20.
15-Baris A and Sabiha A., (2005) “Optical properties of CuInS2 films produced by spray pyrolysis method”. J.Arts and Science Sayi, 3, pp.27-34.
16-Chalapathy, R.B.V.and Ramakrishna,R.K.T., (1998) “Chemical spray pyrolysis of CuCaSe2 thin films”Adv.Mat.Sci. and Tech.,Vol.1,No.2, pp. 1-5.
17-Sridharan M., Narayondass Sa.K., Mangataraj D., and Hee C.L,(2003) “ Optical and opto-electronic properties of polycrystalline Cd0.96Zn0.04Te thin films” Cryst.Res.Tech. 38, No.6,pp.479-487.
18-Eya D.D.O,(2006) “Optical properties and applications of CdSe thin films prepared by chemical bath deposition technique” Pacific J. Sci. and Tech. Vol.7,No.1, pp.64-68.
19-Husham F.S., Makadsi M.N, and Hassan N.P.,(2002) “The effect of doping on the structural and electrical properties of CdSe thin films” Sci.J.Iraqi Atomic Energy Commission , Vol.2, No.2 , pp.25-37. | ||
|
Statistics Article View: 341 PDF Download: 234 |
||