Characterization of Cuprous Oxide Thin Films Prepared by Sol-Gel Spin Coating Technique with Different Additives

Abstract:

Cuprous oxide (Cu₂O) thin films were formed onto indium tin oxide (ITO) coated glass substrate by sol-gel spin coating technique using different additives namely polyethylene glycol and ethylene glycol. It was found that the organic additives added had an important influenced on the formation mechanism of Cu₂O films and lead to different microstructures and optical properties. The films were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and ultraviolet-visible spectroscopy (UV-Vis). Based on the FESEM micrographs the grain size of film prepared by polyethylene glycol has smallest grain of about 83 nm with irregular shape. The highest optical absorbance film was obtained by the addition of polyethylene glycol.

• Periodical: Applied Mechanics and Materials (Volumes 754-755)
• Pages: 1141-1145
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.754-755.1141
• Online since: April 2015
• Authors: Dewi Suriyani Che Halin*, Khairel Rafezi Ahmad, Hussin Kamarudin, I.A. Talib, Abdul Razak Daud, M.A.A. Hamid, Andrei Victor Sandu
• Keywords: Cuprous Oxide, Sol-Gel, Spin Coating, Substrates, Thin Film

References

[1] L. Colsen, F. W. Addis, W. Miller, Experimental and theoretical studies of Cu2O solar cells, Sol. Cells. 7 (1982) pp.247-279.

DOI: 10.1016/0379-6787(82)90050-3

[2] Y.M. Lu, C.Y. Chen and M.H. Lin, Effect of hydrogen plasma treatment on the electrical properties of sputtered N-doped cuprous oxide films, Materials Science and Engineering B 118 (2005) pp.179-182.

DOI: 10.1016/j.mseb.2004.12.046

[3] H. Tanaka, T. Shimakawa, T. Miyata, H. Sato, T. Minami, Effect of AZO film deposition conditions on the photovoltaic properties of AZO–Cu2O heterojunctions, Applied Surface Science 244 (2005) pp.568-572.

DOI: 10.1016/j.apsusc.2004.10.121

[4] L. Armelao, D. Barreca, M. Bertapelle, G. Bottaro, C. Sada, E. Tondello, A sol-gel approach to nanophasic copper oxide thin films. Thin Solid Films 442 (2003) pp.48-52.

DOI: 10.1016/s0040-6090(03)00940-4

[5] 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, Mater. Chem. and Phys. 83 (2004) pp.140-144.

DOI: 10.1016/j.matchemphys.2003.09.015

[6] K. Kajihara and T. Yao, macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). IV. General principle of morphology formation and effect of heat treatment, J. Sol–Gel. Sci. Tech. 17 (2000).

DOI: 10.1023/a:1008602419045

[7] A. Matsuda, T. Kanzaki, K. Tadanaga, M. Tatsumisago and T. Minami, Proton conductivities of sol–gel derived phosphosilicate gels in medium temperature range with low humidity, Solid State Ionics 154-155 (2002) pp.687-692.

DOI: 10.1016/s0167-2738(02)00518-0

[8] D. S. C. Halin, I. A. Talib, M. A. A. Hamid, A. R. Daud, Characterization of cuprous oxide thin films on n-Si substrate prepared by sol-gel spin coating. J. Solid State Science & Technology 16 (2008) pp.232-237.

DOI: 10.4028/www.scientific.net/amm.754-755.1141

[9] M. T. S. Nair, L. Guerrero, O. L. Arenas and P. K. Nair, Chemically deposited copper oxide thin films: structural, optical and electrical characteristics. Appl. Surf. Sci. 150 (1999) pp.143-151.

DOI: 10.1016/s0169-4332(99)00239-1

[10] 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 Material & Solar Cells 68 (2001) pp.307-312.

DOI: 10.1016/s0927-0248(00)00364-0