Preparation and Characterization of Cu-Doped Zno Sol-Gel Derived Optical Thin Films

Krisana Chongsri; Siriwattana Aunpang; Wicharn Techitdheera; Wisanu Pecharapa

doi:10.4028/www.scientific.net/AMR.802.124

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 802Preparation and Characterization of Cu-Doped Zno...

Preparation and Characterization of Cu-Doped Zno Sol-Gel Derived Optical Thin Films

Abstract:

In this work, we report the preparation of Cu-doped ZnO thin films by sol-gel method based on zinc acetate dihydrate (CH₃COO)₂Zn·2H₂O, Copper acetate dihydrate Cu₃(CH₃COO)₂·H₂O) and diethanolamine (HN(CH₂OH)₂, DEA). The precursor solution was prepared at various Cu composition ranging from 2-20 wt%. All films were spin-coated on borosilicate substrates for several coating repetition followed by annealing process at 550 ^°C for 4 h in an ambient air. The structural properties of the films were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD results indicate the domination of hexagonal wurtzite structure of ZnO with noticeable alternation in the XRD peak intensity upon Cu doping content. SEM results revealed the grain size shape and surface morphologies of as-prepared samples. Crucial optical properties of as-prepared films were scrutinized from their UV-Vis transmission spectra. The films are highly transparent in the visible region with more than 90 % transparency within 380 nm to 800 nm. Their corresponding band gaps indicate significant red shift with increasing Cu doping content. Overall results suggest that Cu additive play a vital role on relevant optical properties of ZnO that can be adjusted to meet the requirement for practical optoelectronics applications.

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Advanced Materials Research (Volume 802)

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124-128

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https://doi.org/10.4028/www.scientific.net/AMR.802.124

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Online since:

September 2013

Authors:

Krisana Chongsri, Siriwattana Aunpang, Wicharn Techitdheera, Wisanu Pecharapa

Keywords:

Cu-Doped ZnO, Sol-Gel Method, Thin Film

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References

[1] Z. Banu Bahsi, A. Yavuz Oral, Effects of Mn and Cu doping on the microstructures and optical properties of sol-gel derived ZnO thin films, Opt Mater. 29 (2007) 672-678.

DOI: 10.1016/j.optmat.2005.11.016

Google Scholar

[2] A. Jagannatha Reddy, M.K. Kokila, H. Nagabhushana, R.P.S Chakradhar, C. Shivakumara, J.L. Rao, B.M. Nagabhushana, Structural, optical and EPR studies on ZnO:Cu nanopowders prepared via low temperature solution combustion synthesis, J Alloy Compd. 509 (2011) 5349-5355.

DOI: 10.1016/j.jallcom.2011.02.043

Google Scholar

[3] T. Karali, N. Can, L. Valberg, A.L. Stepanov, P.D. Townsend, Ch. Buchal, R.A. Ganeev, A.I. Ryasnyansky, H.G. Belik, M.L. Jessett, C. Ong, Optical properties and luminescence of metallic nanoclusters in ZnO:Cu, Physica B. 363 (2005) 88-95.

DOI: 10.1016/j.physb.2005.03.006

Google Scholar

[4] M. El-Hilo, A.A. Dakhel, A.Y. Ali-Mohamed, Room temperature ferromagnetism in nanocrystalline Ni-doped ZnO synthesized by co-precipitation, Journal of Magnetism and Magnetic Materials. 321 (2009) 2279–2283.

DOI: 10.1016/j.jmmm.2009.01.040

Google Scholar

[5] M.H. Mamat, M.Z. Sahdan, Z. Khusaimi, A. Zain Ahmed, S. Abdullah, M. Rusop, Influence of doping concentrations on the aluminum doped zinc oxide thin films properties for ultraviolet photoconductive sensor applications, Opt Mater. 32 (2010) 696–699.

DOI: 10.1016/j.optmat.2009.12.005

Google Scholar

[6] O. Mustafa, B. Metin, Thickness dependence of structural, electrical and optical properties of sprayed ZnO:Cu films, Thin Solid Films. 516 (2008) 1703-1709.

DOI: 10.1016/j.tsf.2007.05.018

Google Scholar

[7] J.H.Li, Y.C. Liu, C.L. Shao, X.T. Zhang, D.Z. Shen, Y.M. Lu, J.Y. Zhang and X.W. Fan, Effects of thermal annealing on the structural and optical properties of MgxZn1−xO nanocrystals, J. Colloid Interf Sci. 283 (2005) 513-517.

DOI: 10.1016/j.jcis.2004.09.011

Google Scholar

[8] M. Krunks, T.Dedova, and I.O. Açik, Spray pyrolysis deposition of zinc oxide nanostructured layers, Thin Solid Films. 515 (2006) 1157-1160.

DOI: 10.1016/j.tsf.2006.07.134

Google Scholar

[9] R.N. Gayen, S.N. Das, S. Dalui, R. Bhar and A.K. Pal, Zinc magnesium oxide nanofibers on glass substrate by solution growth technique, Journal of Crystal Growth, 310, (2008) 4073-4080.

DOI: 10.1016/j.jcrysgro.2008.06.049

Google Scholar

[10] H. Wang, K.P. Yan, J. Xie and M. Duan, Fabrication of ZnO colloidal photonic crystal by spin-coating method, Mat Sci Semicon Proc. 11 (2008) 44-47.

DOI: 10.1016/j.mssp.2008.08.005

Google Scholar

[11] R. Noonuruk, W. Techitdheera, W. Pecharapa, Characterization and ozone-induced coloration of ZnxNi1−xO thin films prepared by sol–gel method, Thin Solid Films. 520 (2012) 2769–2775.

DOI: 10.1016/j.tsf.2011.12.010

Google Scholar

[12] M. Caglar, F. Yakuphanoglu, Structural and optical properties of copper doped ZnO films derived by sol-gel, Appl Surf Sci. 258 (2012) 3039-3044.

DOI: 10.1016/j.apsusc.2011.11.033

Google Scholar

[13] R.E. Marotti, P. Giorgi, G. Machado, E.A. Dalchiele, Crystallite size dependence of band gap energy for electrodeposited ZnO grown at different temperatures. Sol Energ Mater Sol Cells 90 (2006) 2356-2361.

DOI: 10.1016/j.solmat.2006.03.008

Google Scholar