The Effect of Zinc Concentration on the Structural, Morphological and Optical Properties of CdS: Zn Nanocrystalline Prepared by Chemical Bath Deposition


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Abstract


Undoped Cadmium sulfide (CdS) nanocrystalline thin film and doped Zinc are prepared by chemical bath deposition (CBD) technique. The characterization of the product was done by UV-VIS absorption, x-ray diffraction (XRD) and atomic force microscopy (AFM). The effect of zinc content on structural, morphological and several optical properties have been studied. The X-ray diffraction (XRD) analysis revealed that the films were polycrystalline and exhibited two phases cubic and hexagonal structure which increases the cubic phase and Zn ratio. Atomic force microscopy images show uniform, homogeneous and strong adherent to Undoped (CdS) nanocrystalline and doped Zinc over the entire glass substrate surface without any voids, pinholes or cracks. This reveals a continuous granular morphology for the films and therefore the average grain size changes which increase the zinc content and the band gap of the thin films which are found to be direct allowed transition. The optical characterizations of the as deposited and annealed films were carried out using UV. VIS transmittance spectroscopy in the wavelength range 300.1100 nm. The results show that in the visible region the transmittance of the films decreases as the containing of Zn increases. The reverse is the case with the absorbance as it was observed to be increased in the same region. The result also shows that the absorption coefficient, extinction coefficient, real and imaginary parts of dielectric constant are tending to increase with the increasing of Zn concentration.
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Keywords


Nanocrystalline CdS; Chemical Bath Deposition; Zn Concentration; Characterization of (CdS:Zn) Absorption; X-Ray Diffraction and Atomic Force Microscopy

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References


N. I. Kovtyukhova, E. V. Buzaneva, C .C. Waraksa and T. E. Mallouk, Ultrathin Nanoparticle ZnS and ZnS: Mn films: Surface Sol-Gel Synthesis, Morphology, Photophy- sical Properties,” Materials Science and Engineering B, Vol. 69-70,(2000) .
http://dx.doi.org/10.1016/s0921-5107(99)00312-8

J. Aguilar-Hernandez, J. Sastre-Hernandez, N. Ximello- Quiebras, R. Mendoza-Perez, O. Vigil-Galan, G. Contreras-Puente and M. Cardenas-Garcia, Photoluminescence Studies on CdS-CBD Films Grown by Using Different S/Cd ratios, Thin Solid Films, Vol. 511-512, (2006).
http://dx.doi.org/10.1016/j.tsf.2005.11.082

KasimUthmanIsah, Optical and Morphological Studies of Chemical Bath Deposited Nanocrystalline Cd1−xZnxS Thin Films , Materials Sciences and Applications, (2013) .

A.O. Awodugba and O. Adedokun, On the Physical and Optical Characteristics of CdS Thin Films Deposited by the Chemical Bath Deposition Technique , The Pacific Journal of Science and Technology, Volume 12. Number 2. November (2011).

Godovski D. Yu, Electron behavior and magnetic properties of polymer nanocomposites , Adv. Polym. Sci. 119 (1995)pp. 79-122.
http://dx.doi.org/10.1007/bfb0021281

Herron N., Wang Y. and Eckert H., Synthesis and characterization of surfacecapped, size-quantized CdS clusters, Chemical control of cluster size. J. Am. Chem. Soc. 112 (1990) pp. 1322-1326.
http://dx.doi.org/10.1021/ja00160a004

S. Kar and S. Chaudhuri, Met. Org. Nano-Metal Chem. 36 (2006) 289–312.
http://dx.doi.org/10.1080/15533170600596055

Xu Y. N., Ching W. Y., Electronic, optical, and structural properties of some wurtzite crystals, Physical Review B 48 (1993) 4335-4351
http://dx.doi.org/10.1103/physrevb.48.4335

B. Skinner ,Unit-cell edges of natural and synthetic sphalerites Locality: synthetic, American Mineralogist 46, (1961)1399-1411.

J. Ximello-Quiebras, G. Contreras-Puente, J. Aguilar-Hernandez, G. Santana Rodriguez and A. Arias-Carbajal Readigos, Sol. Energ. Mater. Sol Cells 82 (2004) 263.

Donald A. Neamen , Semiconductor Physics and Devices Basic Principles ,Third Edition University of new Mexico, Pubh5hed by McGraw-HIII, (2003)

Fundamentals of the Physics of Solids, Vol. I Structure and Dynamics Translated by Attila (1999) Piroth 242,261.

Konczos G. , Barsony I. and DeakP. , Introduction to materials science and technology, Textbook of Technical University Budapest for PhD Students in Physics, (1998).

Z. Rizwan, A. Zakaria, M. Ghazali, A. Jafari, F. Ud Din, and R. Zamiri, Int. J. Mol. Sci., 12 ( 2011) 1293.
http://dx.doi.org/10.3390/ijms12021293

R. T Sanderson's, Chemical periodicity , Reinhold (1960) .

MohdAmirul, SyafiqMohdYunos, ZainalAbidinTalib and Wan Mahmood Mat Yunus, Annealing and light effect on structural and electrical properties of thermally evaporated Cu2SnSe3 thin films, Journal of Chemical Engineering and Materials Science Vol. 2, No. 7, July (2011), p. 103-109.

Nada K. Abbas, Iqbal S. Naji, Alaa A. Abdulmajeed, The Effect of Selenium Concentration on the Structural, Morphological and Optical Properties of CdSexS1-x Thin Films, (2012) International Review of Physics (IREPHY), 6 (3), pp. 318-327.

G. Nabiyouni1, R. Sahraei, M. Toghiany, M. H. MajlesAra and K. Hedayati, Rev.Adv.Mater.Sci. 27 (2011) ,52-57.

Nada K.Abbas , Khalid T. Al- Rasoul and Zainb J. Shana , New Method of Preparation ZnSNano size at low pH , International Journal of electrochemical science ,www.electrochemsci.org , Vol. 8, (2013) .

G. Busch and H. Schade, , Lectures On Solid State Physics, Pergaman Press, London, (1976).
http://dx.doi.org/10.1016/b978-0-08-016894-4.50011-5

A.Martynes, C.Guillen and J. Herrero //Appl. Surf. Sci. 140 (1999) 182.

J. Tauc, Amorphous and Liquid Semiconductors , Plenum Press, London and New York (1974).
http://dx.doi.org/10.1007/978-1-4615-8705-7

Mazin A. Mahdi , Optical Properties Of ZnxCd1-xS Thin Films,J.Basrah Researches (Sciences) Vol.32. Part.3. 44 - 50 (2006) .

S. M. Sze and Kwok K. Ng ,Physics of Semiconductor Devices , Third Edition, A John Wiley & Sons, Jnc., Publication, P 60. .New York, (1985).

Chen B., Eddaoudi M., Reineke, T. M., Kampf, J. W., O’Keeffe M. and Yaghi O. M., Cu2(ATC)• 6H2O: Design of Open Metal Sites in Porous Metal- Organic Crystals (ATC: 1,3,5,7-Admantane Tetracarboxylate), J. Am. Chem. Soc. 122 (2000) .
http://dx.doi.org/10.1021/ja003159k

S. Aksoy, Y. Caglar, S. Ilican, and M. Caglar, OpticaApplicata, V. XL, N.1 (2010) .
http://dx.doi.org/10.1016/j.apsusc.2010.03.010

L. Kazmerski, Polycrystalline and Amorphous Thin Films and Devices, Academic Press (1980).
http://dx.doi.org/10.1016/b978-0-12-403880-6.50009-7


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