Source: http://www.ajmsp.org/article/150/10.11648.j.ajmsp.20180302.12
Timestamp: 2019-04-21 22:00:23+00:00

Document:
Copper oxide thin films were deposited on Pyrex glass substrates by spray pyrolysis using ethanol and distilled water (DW) respectively as solvents. Rutherford backscattering spectroscopy results indicated that films from aqueous are thicker than those of alcoholic solutions. Rutherford backscattering spectroscopic compositional results showed the films to be mainly CuO. Optical transmittance measurement of the films was analyzed to obtain the band gap, Urbach energy, optical conductivity, refractive index and the extinction coefficient which were found to be dependent on the solvent used and strongly influenced by the photon energy. The use of Tauc’s equation for calculating the bandgap indicated possible direct and indirect optical transitions. The refractive index of the films which showed normal dispersion behavior were also analyzed using single oscillator model to determine the dispersion parameters such as the dispersion energy, average oscillator strength and wavelength, zero and high frequency dielectric constant, zero frequency refractive index, optical charge carrier density, mobility and resistivity. All the determined values are higher for ethanol than aqueous samples.
M. R. Johan, M. S. Mohd Suan, N. L. Hawari and H. A. Ching, Int. J. of Electrochem. Soc., vol. 6, pp. 6094-6104, 2011.
J. X. Wang, X. W. Sun, Y. Yang, K. K. Akyaw, X. Y. Huang, J. Z. Yin, J. Wei and H. V. Demir, "Free-Standing ZnO-CuO Composite Nanowire Array Films and their Gas Sensing Properties," Nanotechnology, vol. 22, p. 325704, 2011.
Z. H. Ibupoto, K. Khun, V. Beni, X. Liu and M. Willander, "Synthesis of Novel CuO Nanosheets and Their Non-Enzymatic Glucose Sensing Applications," Sensors, vol. 13, pp. 7926-7938, 2013.
R. Z. Zhan, J. Chen, S. Z. Deng and N. S. Xu, "Fabrication of gated CuO nanowire field emitter arrays for application in field emission display," J. Vac. Sci. Technol., vol. 28, p. 558, 2010.
J. Dattarya, P. Shailesh, C. Manik, G. Prasad, R. Sanjay, R. Bharat, S. Shashwati and P. Vikas, "Nanocrystalline CuO Thin Films for H2S Monitoring: Microstructural and Optoelectronic Characterization," J. of Sensor Technology, vol. 1, pp. 36-46, 2011.
J.-W. Han and M. Meyyappin, "Copper Oxide Resistive Switching Memory for e-textile," AIP Advances, vol. 1, 2011.
P. Raksa, S. Nilphai, A. Gardchareon and S. Choopun, "Copper oxide thin film and nanowire as a barrier in ZnO dye-sensitized solar cells," Thin Solid Films, vol. 517, no. 17, pp. 4741-4744, 2009.
H. Y. Bae and G. M. Choi, "Electrical and reducing gas sensing properties of ZnO and ZnO–CuO thin films fabricated by spin coating method," Sensors and Actuators B: Chemical, vol. 55, no. 1, pp. 47-54, 1999.
Kosyachenko, L A, Solar Cells – New Aspects and Solutions, In Tech Publisher, 2011.
D. P. Singh, J. Singh, P. R. Mishra, R. S. Tiwari and O. N. Srivastava, "Synthesis, Characterisation and Application of Semiconducting Oxide (Cu2O and ZnO) nanostructures," Bulletin of Materials Science, vol. 31, no. 3, pp. 319-325, 2008.
W. Siripala, L. D. R. D. Perera, K. T. L. De Silva, J. K. D. S. Jayanetti and I. M. Dharmadasa, "Study of annealing Effects of Cuprous Oxide Grown by Electrodeposition Technique," Solar Energy Materials and Solar Cells, vol. 44, no. 3, pp. 251-260, 1996.
Y. Tang, Z. Chen, Z. Jia, L. Zhang and J. Li, "Electrodeposition and Characterisation of Nanocrystalline Films of Cuprous Oxide Thin Films on TiO2," Materials Letters, vol. 59, no. 4, pp. 434-438, 2005.
A. A. Ogwu, T. H. Darma and E. Bouquerel, "Electricak Resistivity of Copper Oxide Thin Films Prepared by Reactive Magnetron Sputtering," Journal of Achievements in Materials and Manufacturing Engineering, 24(1), (2007),, vol. 24, no. 1, pp. 172-177, 2007.
G. Papadimitropoulos, N. Vourdas, V. E. Vamvakas and D. Dazavoglou, "Optical and Structural Properties of Copper Oxide Thin Films Grown by Oxidation of Metal Layers," Thin Solid Films, vol. 515, pp. 2428-2432, 2006.
G. Lai, H. Lan, S. Lin, Y. Qu and F. Lai, "Optical Properties of the Oxidation of Cu thin Films Prepared by Thermal Evaporation," Surface Review Letters, vol. 20, no. 1, p. 135001, 2013.
O. Fasakin, M. A. Eleruja, O. Akinwunmi, B. Olofinjana, E. Ajenifuja and E. O. B. Ajayi, "Synthesis and Characterization of Metal Organic Chemical Vapour Deposited Copper Titanium Oxide (Cu-Ti-O) Thin Films from Single Solid Source Precursor," Journal of Modern Physics, vol. 4, no. 12C, pp. 1-6, 2013.
N. Serin, T. Serin, S. Horzum and Y. Celik, "Annealing effects on the properties of copper oxide thin films prepared by Chemical Deposition.," Semiconductor Science and Technology.
D. P. Dubal, G. S. Gund, R. Holze, H. S. Jadhav, C. D. Lokhande and C.-J. Park, "Surfactant-Assisted Morphological Tuning of Hierarchical CuO Thin Films for Electrochemical Supercapacitors," Dalton Transaction, vol. 42, pp. 6459-6467, 2013.
V. F. Drobny and D. L. Pulfrey, "Properties of Reactively-Sputtered Copper Oxide Thin Films," Thin Solid Films, vol. 61, no. 1, pp. 89-98, 1979.
L. Nkhail, M. Elyaagoubi, A. Elmansouri, A. El Kissani, A. El Khalfi, A. El Fathi, M. Ait Ali and A. Outzourhit, "Structural, Optical, and Electrical Characteristics of Zinc Oxide and Copper Oxide Films and Their Heterojunctions," Spectroscopic Letters, vol. 48, no. 7, pp. 536-541, 2015.
E. Ajenifuja, A. Y. Fasasi and G. A. Osinkolu, "Sputtering-Pressure Dependent Optical and Microstructural Properties Variations in DC Reactive Magnetron Sputtered Titanium Nitride Thin Films," Transactions of the Indian Ceramic Society, vol. 71, no. 4, pp. 181-188, 2012.
E. Ajenifuja, A. P. I. Popoola and O. Popoola, "Thickness Dependent Chemical and Microstructural Properties of DC Reactive Magnetron Sputtered Titanium Nitride Thin Films on Low Carbon Steel Cross-section," Journal of Material Research and Technology, 2018.
V. Dhanasekaran and T. Mahalingam, "Electrochemical Deposition and Characterisation of Cupric Oxide Thin Films," J. Nanosci. Nanotechnol., vol. 13, no. 1, pp. 250-259, 2013.
H. Kidowaki, T. Oku and A. Akiyama, "Fabrication and Evaluation of CuO/ZnO Heterostructures for Photoelectric Conversion," IJRAS, vol. 13, no. 1, pp. 67-72, 2012.
V. Dahiya, A. Kumar, G. Kaur and A. Mitra, "Investigation of variation of energy of laser beam on structural, electrical and optical properties of pulsed laser deposited CuO thin films," in Conference 58, DAE Solid State Symposium, 2013.
N. S. Saadat and F. E. Ghodsi, "Effect of pH on the Properties of Nanocrystalline CuO Thin Films Deposited by Sol-Gel Process," Russ. J. Phys. Chem., vol. 87, no. 1, pp. 84-87, 2013.
S. C. Ray, "Preparation of copper oxide thin film by the sol–gel-like dip technique and study of their structural and optical properties," Solar Energy Materials and Solar Cells, vol. 68, no. 3-4, pp. 307-312, 2001.
A. Y. Oral, E. Mensur, M. H. Aslan and E. Basaran, "The preparation of Copper (II) oxide thin films and the study of their microstructures and optical properties," Materials Chemistry and Physics, vol. 83, no. 1, pp. 140-144, 2004.
M. Ristov, G. I. Sinadnovski and V. N. Singh, "Resistive Switching in Copper Oxide Nanorods: A Bottom Up Approach Applicable for Enhanced Scalability," J. Nanosci. Nanotech., vol. 11, no. 10, pp. 8538-8542, 2011.
H. Samir, A. Riyam and I. Jadaan, "Study of the Optical Properties of Copper Oxide Thin Film Deposited by Cold Spray," AL-Qadisiya J. for Engineering Sciences, vol. 6, no. 4, p. 439-454, 2013.
M. Engin, F. Atay, S. Kose, V. Bilgin and I. Akyuz, "Growth and Characterization of Zn-Incorporated Copper Oxide Films," J. Elec. Mater., vol. 38, no. 6, pp. 787-796, 2009.
Y. S. Chaudhary, A. Agrawal, R. Shrivastas, V. R. Satsangi and S. Dassi, "A study on the Photoelectrochemical Poperties of Copper Oxide Thin Films," Int. J. of Hydrogen Energy, vol. 29, no. 2, pp. 131-134, 2004.
J. Morales, L. Sanchez, F. Martin, J. R. Ramos-Barrado and M. Sanchez, "Use of Low-Temperature Nanostructured CuO Thin Films Deposited by Spray-Pyrolysis in Lithium Cells," Thin Solid Films, vol. 474, no. 1-2, pp. 133-140, 2005.
A. E. Adeoye, E. Ajenifuja, B. A. Taleatu and Y. A. Fasasi, "Rutherford Backscattering Spectrometry Analysis and Structural Properties of Zn𝑥b1−𝑥 Thin Films Deposited by Chemical Spray Pyrolysis," Journal of Materials, vol. 2015, p. 8, 2015.
A. E. Adeoye, E. Ajenifuja, B. A. Taleatu, E. D. Ogunmola, E. Omotoso, O. Adeyemi and O. G. Babatunde, "Surface microstructure, optical and electrical properties of spray pyrolyzed PbS and Zn-PbS thin films for optoelectronic applications," Materials Science-Poland, vol. 35, no. 3, pp. 576-582, 2017.
T. Mahalingam, V. Dhanasekaran, G. Ravi, S. Lee, J. P. Chu and H.-J. Lim, " Effect of Deposition Potential on the Physical Properties of Electrodeposited CuO Thin Films," J. Optoelect, and Adv. Materials, vol. 12, no. 6, pp. 1327-1332, 2010.
M. Lamri Zeggar, F. Bourfaa, A. Adjimi, F. Boutbakh, M. S. Aida and N. Attaf, "CuO Thin Films Deposited by Spray Pyrolysis: Influence of Precursor Solution Properties," Int. J. of Mathematical, Computational, Physical, Electrical and Computer Engineering, vol. 9, no. 10, pp. 618-621, 2015.
A. S. Hassanien and A. A. Akl, "Effect of Se Addition on Optical and Electrical Properties of Chalcogenide CdSSe Thin Films," Superlattices and Microstructures, vol. 89, pp. 153-169, 2016.
A. S. Gadallah and M. M. El-Nahass, "Structural, Optical Constants and Photoluminescence of ZnO Thin Films Grown by Sol-Gel Spin Coating," Advances in Condensed Matter Physics, vol. 2013, p. 11, 2013.
A. S. Hassanien and A. A. Akl, " Influence of Composition on Optical and Dispersion Parameters of Thermally Evaporated Non-Crystalline Cd50S50-xSex Thin Films," Journal of Alloys and Compounds, vol. 648, pp. 280-290, 2015.
A. S. Hassanien, "Studies on Dielectric Properties, Opt-electrical Parameters and Electronic Polarizability of Thermally Evaporated Amorphous Cd50S50-xSex," Journal of Alloys and Compounds, vol. 671, pp. 566-578, 2016.
A. Fasasi, B. D. Ngom, J. B. Kana-Kana, R. Bucher, M. Maaza, C. Theron and U. Buttner, "Synthesis and Characterisation of Gd-doped BaTiO3 Thin Films Prepared by Laser Ablation for Optoelectronic Applications," J. Phys. & Chem. Solids, vol. 70, pp. 1322-1329, 2009.
G. A. Artioli, A. Manchini, V. R. Barbieri, M. C. Quattrini, E. Quartarone, M. C. Mozzati, G. Drera, L. Sangaletti, V. Gombac, P. Fomasiero and L. Malavasi, "Correlation between Deposition Parameters and Hydrogen Production in CuO Nanostructured Thin Films," Langmuir, vol. 32, no. 6, pp. 1510-1520, 2016.

References: V. 
 V. 
 V. 

V. 

V. 

V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V.