Physics Journal
Articles Information
Physics Journal, Vol.2, No.2, Mar. 2016, Pub. Date: Jan. 12, 2016
Time Optimization of Chemically Deposited Cadmium Silver Sulphide (CdAgS) Ternary Thin Films at Room Temperature
Pages: 88-95 Views: 1133 Downloads: 1602
[01] L. N. Okoli, Department of Industrial Physics, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria.
[02] I. A. Ezenwa, Department of Industrial Physics, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria.
[03] C. I. Elekalachi, Department of Industrial Physics, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria.
[04] O. T. Okpaneje, Department of Physics Education, Federal College of Education (Technical), Umunze, Anambra State, Nigeria.
[05] V. C. Okoye, Department of Industrial Physics, Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria.
Chemical bath method of thin film deposition has being successfully used to deposit thin films of Cadmium Silver Sulphide (CdAgS) at room temperature from the mixture of aqueous solutions of Cadmium chloride hemi(pentahydrate), CdCl2. 2.5H2O, Silver nitrate (AgNO3) and Thiourea, they serve as precursors for Cd2+, Ag2+ and S2-. Triethanolamine (TEA) was employed as the complexing agent while ammonium solution was used as a pH stabilizer. Deposition time as bath parameter was optimized. Five samples of Cadmium sliver sulphide films were fabricated at various time intervals of 1 hour, 2 hours, 3 hours, 4 hours and 5 hours. Optical properties of the films were studied using VU – VIS – NIR spectrophotometer within VIS and NIR regions. Micrographs of the films were taken using microphotometer. The as – grown films have low absorbance and high transmittance in VIS and NIR regions. Energy band gap of the films ranges from 1.90 eV – 2.40 eV. Micrographs of the films were analyzed using ImageJ, the average particle sizes of 94.54 nm – 723.71 nm was obtained.
Thin Films, Chemical Bath Deposition, Optical Properties, Energy Band Gap, Micrographs
[01] Ezema F. I., (2004), Fabrication, Optical Properties and Applications of Undoped Chemical Bath Deposition ZnO Thin Films. Journal of Research Science, Vol. 15, N0. 4, pp. 343–350.
[02] Ezenwa I. A. and Okoli L. N. (2015), Synthesis and Characterization of Chemically Deposited Iron Copper Sulphide (FeCuS) Thin Films, Asia Pacific Journal of Research Vol: 1, Issue XXI, pp. 14–21.
[03] Ezenwa I.A and Okoli L. N. (2015), Optical and Structural Characterization of FeCuS Ternary Thin Films, International Journal of Innovative Technology And Research, Volume No. 3, Issue No. 4, pp. 2202-2206.
[04] Nair P. K. and Nair M. T. S., (1992), Chemically Deposited ZnS Thin Film: Applicat ion as Substrate for Chemically Deposited B2S3, CuxS and PbS Thin Films, Semiconductor Science Technology Vol. 7, pp. 239.
[05] Sankapal B. R. and Lokhande C. D., (2002), Effect of annealing on chemically deposited Bi2Se3-Sb2Se3 composite thin films, Materials Chemistry and Physics, 74, 126-133.
[06] Woon-Jo J. and Cye-Choon P., (2003), Structural and Electrical Properties of CuGaS2 Thin Films by Electron Beam Evaporation, Solar Energy Material and Solar Cells Vol. 75, pp. 93–100.
[07] Nair P. K., Ocampo M., Fermandez A. and Nair M. T. S. (1990), Solar Control Characterization of chemically Deposited Lead Sulphide coatings, Solar Energy Material, Vol. 20, issues 3, pp. 235–243.
[08] Lee Jae-Hyeong, Song Woo-Chang, Yi Jun- Sin and Yoo Yeong-Sik, (2003), Characteristics of the CdZnS Thin Films Doped by Thermal Diffusion of Vacuum Evaporated Indium Films, Materials and Solar Cells Vol. 75, issues (1-2), pp. 227–234.
[09] Jadhav U. M, Shinde. M. S., Patel S. N and Patil R. S., (2014), Structural, Optical and Electrical Properties of Nanocrystalline Cadmium Sulphide Thin Films Deposited by Novel Chemical Route, Indian Journal of Pure and Applied Physics, Vol. 52, pp. 39–43.
[10] Alivisatos A. P., (1996), Semiconductor Cluster Nanocrystals and Quantum Dots, Science, Vol. 271, 933.
[11] Gopinathan C., Sarveswaran T. and Mahalakshmi K., (2011), Studies on CdS Nanocrystalline Thin Films with Different S/Cd Ratios Prepared using Chemical Bath Deposition Method, Adv. Studies Theor. Phys., Vol. 5, No. 4, pp. 171–183.
[12] Torres J., Cisneros J.I. and Gordillo G., (1996), Determination of the Optical Constants of Polycrystalline CdS Thin Films Prepared by Evaporation, Advances in Materials Science and Technology, Vol. 1 No. 1 Art. 2, pp. 07–12.
[13] Meshram R. S., Suryavanshi B. M. and Thombre R. M., (2012), Structural and Optical Properties of CdS Thin Films obtained by Spray Pyrolysis, Advances in Applied Science Research, Vol. 3 (3), pp. 1563-1571.
[14] Ezenwa I. A., (2012), Effect of Film Thickness on the Transmittance of Chemical Bath Fabricated CdS Thin Film, Advances in Applied Science Research, Vol. 3 (5), pp. 2826–2829.
[15] Munoz J.A., Gomez C., Ballester A., Blazquez M.L., Gonzalez F., and Figueroa M., (1998), Journal of Applied Electrochemistry, Vol. 28, pp. 49-56.
[16] Jadhav U. M., Gosavi S. R., Patel S. N., Patil R.S., (2011), Studies on Characterization of Nanocrystalline Silver Sulphide Thin Films Deposited by Chemical Bath Deposition (CBD) and Successive Ionic Layer Adsorption and Reaction (SILAR) Method, Archives of Physics Research, 2 (2), pp. 27–35.
[17] Ezenwa I. A., Okereka N.A. and Egwuenyenga N. J, (2012), Optical Properties of Chemical Bath Deposited Ag2S Thin Films, International Journal of Science and Technology, Volume 2 No.3, pp. 101–106.
[18] Frigo D. M., Khan O. F. Z. and O'Brien P., (1989), Growth of Epitaxial and Highly Oriented Thin Films of Cadmium and Cadmium Zinc Sulphide by Low – Pressure Metal organic Chemical Vapour Deposition using Diethyldithio carbanates, Journal of Crystal Growth,, Vol. 96, pp. 989.
[19] Nicolau Y. F. Dupuy M. and Brunel M., (1990), ZnS, CdS and Zn1-xCdxS Thin Films Deposited by the Successive Ionic Layer Adsorptionand Reaction Process, Journal of Elecrochemical Society, Vol. 137, pp. 2915.
[20] Seung – Yup Lee and Byung – Ok Park, (2008), CuInS2 Thin Films Deposited by Sol – gel Spin Coating Method, Thin Solid Films, Vol. 516(12), pp. 3862–2664.
[21] Ezenwa I. A. and Okoli L.N. (2015), Characterization of Chemically Synthesized Copper Zinc Sulphide (CuZnS2) Thin Films, European Open Applied Physics Journal Vol. 1, No. 1, February 2015, pp. 1–9.
[22] Tang H. X, Yan M., Zhang H., Ma X. Y., Wang L. And Yang D., (2005), Preparation and Characterization of CuInS2 Thin Films for Solar Cells by Chemical Bath Deposition, Chem. Res. Chinese U. 2005, 21( 2), 236–239.
[23] Mohammed M. A., Mousa A.M., and Ponpon J. P., (2009), Optical and Optoelectric Properties of PbCdS Ternary Thin Films Deposited by CBD, Journal of Semiconductor Technology and Science, Vol. 9, No. 2. pp. 111–117.
[24] Ottih I. E., (2014), Studies of Chemical Bath Anti – reflection Thin Film of ZnNiS, Pelagia Research Library, Advances in Applied Science Research, 5(1) pp. 91 – 96.
[25] Hankare P. P., Delekar S. D., Chate P.A, Sabane S. D., Garadkar K. M. and Bhuse V. M., (2005), A Novel Route to Synthesize Cd1-xPbxSe Thin Films from Solution Phase, Semiconductor Science and Technology, 20, p. 257–264.
[26] Umeshkumar P. K., Sulakshana S.B. and Pawar P. H., (2011), The Optical Parameters of ZnxCd(1-x)Te Chalcogenide Thin Films, Journal of Surface Engineered Materials and Advanced Technology, Vol. 1, pp. 51-55.
[27] Hota G., Idage S. B., Khillar K. C., (2007), Characterization of Nano-sized CdS-Ag2S Core-Shell Nanoparticles Using XPS Technique. Colloids and Surfaces A; Physicochemical and Engineering Aspects, Vol. 293, Issues 1 – 3, pp. 5–12.
[28] Han M. Y., Hung W., Chew C. H., Gan L. M., Zhang X. J., Ji W., (1998), Large Nonlinear Absorption in Coated Ag2S/CdS Nanoparticles by Inverse Microemulsion, Journal of Physical Chemistry B, Vol. 102, Issue 11, pp. 1884 – 1887.
[29] Peng P., Saddler B., Alivisator A. P., and Saykally R. J., (2010), Exciton Dynamics in CdS−Ag2S Nanorods with Tunable Composition Probed by Ultrafast Transient Absorption Spectroscopy, Journal of Physical Chemistry C, Vol. 114, Issue 13, pp. 5879-5885.
[30] Wooten F., (1972) Optical properties of solids, Academic press New York.
[31] Janai N., Alfred D.D., Booth D.C. and Seraphin B.O., (1979), Optical Properties and Structure of Amorphous Silicon Films Prepared by CVD, Journal of Solar Energy Material, Vol. 1, Issues 1 – 2, pp. 11–27.
[32] Coutts T. J., Ward J. S., Young D. L., Dessent T. A., and Noufi R., (2001), The Search for and Potential Impact of Improved Transparaent Conducting Oxides on Thin Film Solar Cells, Technical digest of the 12th international photovoltaic science and engineering conference, Jeju Korea, June 11-15.
[33] Pankove J. I., (1971), Optical Processes in Semiconductors, Prentice Hall, new York, p. 413.
[34] Ezema F. I., Osuji R. U., Ezugwu S. C., Ekwealor A. B. C., Asogwa P. U., B. Ezeokoye A., and Mahaboob Beevi M. (2009), Chemical Bath Deposition of Heterojunction Thin Films for Solar Cell Application, International Conference on Photonics, Nanotechnology and Computer Applications, India, Vol. 1, 144–150.
[35] Abramoff M. D., Magalhaes, P. J. and Ram, S. J., (2004), Image Processing with ImageJ, Biophotonic International, Volume 11, Issue 7, pp. 36–42.
[36] Uhuegbu, C. C., (2010), Solution Growth Technique for FeCuS2 Ternary Thin Film and its Optical Characteristics, American Journal Scientific and Industrial Research, Vol. 1(3), pp. 392–396.
[37] Ezema F.I., (2004), Optical Properties of Chemical Bath Deposited FeCdS3 Thin Films, Academic Open Internet Journal, Vol. 11.
MA 02210, USA
AIS is an academia-oriented and non-commercial institute aiming at providing users with a way to quickly and easily get the academic and scientific information.
Copyright © 2014 - American Institute of Science except certain content provided by third parties.