Structural and Optical Studies of Molarity Based ZnO Thin Films

Abstract:

Zinc Oxide thin films were prepared for different precursor solution molarities from 0.025M to 0.1M by spray pyrolysis deposition technique. A comprehensive study was carried out to realize the effect of concentration of precursor on ZnO thin films. The optimized temperature of the glass substrate was 300°C. From the XRD data it is inferred that the films are polycrystalline and hexagonal wurtzite structure . The degree of preferred orientation were along diffraction planes (100), (002) and (101) for all the ZnO films. The intensity of the diffraction peak prepared with 0.1M concentration is higher than those prepared at lower concentrations. The grain size (D) was calculated using Debye-Scherrer formula. It was found that the average grain size increases, when the molar concentration increases. As the solution concentration increases, the band gap decreases. The films are transparent in the visible region (85%), and the transmittance decreases as the molar concentration increases, which is caused by optical scattering at grain boundaries.

• Periodical: Nano Hybrids and Composites (Volume 17)
• Pages: 140-148
• DOI: https://doi.org/10.4028/www.scientific.net/NHC.17.140
• Online since: August 2017
• Authors: A. Jacquiline Regina Mary*, S. Arumugam
• Keywords: Grain Size, Molarity, Optical Band Gap, ZnO Thin Film

References

[1] Z. Yamlahi Alami, M. Salem, M. Gaidi, J. Elkhamkhami, Advanced Energy: An International Journal, 2 (2015) 4.

[2] Said Benramache, Foued Chabane, Djamel Bensahal, Okba Bensahal, Fatima Z Lemmadi, Journal of Science and Engineering, 2(2) (2013) 97-104.

[3] Atheer Ibraheem Abd Ali, International Journal of Scientific and Engineering Research, Volume 6(1) (2014).

[4] Fathi Choikh, Yamina Beggah and Mohammed Salah Aida, International Journal of Thin Films Science and Technology, 3, 2, (2014) 51-56.

[5] Nagarani Nagayasamy, Saroja Gandhimathination, Vasu Veerasamy, Open Journal of Metal, 2013, 8-11.

[6] R. Ramadas, K. Kesavan, R. Murugasami and D. Kumar, Nano Vision, 3(3) (2013), 203-208.

[7] A. Sakthivelu, V. Saravanan, M. Anusuya, J. Joseph Prince, Journal of Ovonic Research, 7 (1) (2011), 1-7.

[8] C. Amutha, A. Dhanalakshmi, B. Lawrence, K. Kulathuraan, V. Ramadas, B. Natarajan, Progress in Nanotechnology and Nanometerials, 3 (1) (2014), 13-18.

[9] Ikhymum Kim, Jong Su Kim, Jin Soo Kim, Journal of the Korean Society, 65 (4) (2014), 480-486.

[10] Nadir F. Habubi, Ziad M. Abood, Ahemed N. Algamel, World Scientific News, WSN 22(2015) 91-105.

[11] Nurdin Siregar, Eddy Marlianto, Saharman Gea, Motlan, International Journal of Sciences: Basic and Applied Research (IJSBAR), 22, 1 (2015) 428-434.

[12] A. Zaier, A. Meftah, A.Y. Jaber, A.A. Abdelaziz, M.S. Aida, Journal of King Saud University-Science(2015) 27, 356-360.

DOI: 10.1016/j.jksus.2015.04.007

[13] D. Bao,H. Gu and A. Kuang, Thin solid films. 321 (1998) 37.

[14] Ans Farooq and Muhammad Kamran, International Journal of Applied Physics and Mathematics, 2 (6) (2012).

[15] Y.F. Kuo T.Y. Tseng, Mater, Chem. Phys. 61 (1991). 244.

[16] E. Bacaksiz, M. Parlak, M. Tomakin, A. Ozcelik a, M. Karakiz, M. Altunbas, Journal of Alloys and Compounds 466 (2008), 447-450.

[17] Mazabalo Baneto, Alexandru Eneseca, Yendoube Lare, Kofi Jodeo, Kossi Napo, Ceramics International, 40 (2014) 8397-8404.

[18] E.U. Masumdar and M.A. Barote, Journal of Chemical Biological and Physical Sciences 3 (2013) 525-533.

[19] Min Su Kim, Soaram Kim, Giwoong Nam, Dong-Yul Lee, Jac-Young Leem, Optical materials 34 (2012), 1543-1548.

[20] Ali Arif1, Okba Belahssen, Salim Gareh, and Said Benramache, Journal of semiconductors, 36(1), 2015 January.

[21] JJ. Lu,Y.H. Wang J.B. Zang, and y. n. Li, Applied Surface Science. 256(2010) 4720.

[22] Shadia Jamil Ikhmayies, Riyad N. Ahmad-Bitar, jmr&t ELSVIER, 2(3) 2013, 221–227.