Investigation on Cathodoluminescence Properties of Copper Implanted ZnO Samples

Abstract

ZnO single crystals has been implanted with 400 keV Cu ions at fluences of 2,5 x 10¹⁶ ions/cm² at room temperature. The cathodoluminescence (CL) measurements of pure and Cu implanted samples has been reported at UV-visible range at both room and different temperatures. After the implantation process, the samples were annealed for 1 hour at 1000ºC. The effects of ion implantation and annealing temperature and on the CL signals were researched with the data obtained. The CL spectrum of pure ZnO exhibited two emission bands at 385 nm and 550 nm. There are some changes in the emission bands in the CL spectrum that are thought to be due to the presence of Cu ions. Also it is possible to say that the annealing temperature can strongly influence CL intensity.

Keywords

• ZnO,Ion Implantation,Nanoparticles,Cathodoluminescence

References

1. 1. Jadwisienczak,W. M, Lozykowski, H. J, Xu, A, Patel, B. 2002. Visible emission from ZnO doped with rare-earth ions. Journal of Electronic Materials; 31(7) 776–784.
2. 2. Coskun, C, Look, D C, Farlow, G C, Sizelove, J R. 2004. Radiation hardness of ZnO at low temperatures. Semiconductor Science and Technology; 19(6) 752-754.
3. 3. Jagadish, S, Pearton, S, 2006. Zinc Oxide Bulk, Thin Films and Nanostructures; Australian National Univ. Australia.
4. 4. Karali, T, Can, N, Valberg, L, Stephanov, A.L, Townsend, P.D, Buchal, C.H, Ganeev,R.A Ryasnyanskya, A.L, Belik, H.G, Jessett, M.L, Ong, C, 2005. Physica B: Considered Matter; 363(1-4) 88-95.
5. 5. Kibar, R, Farklı Metal İyonları ile bombalanan SrTiO3 Kristalinin ve Bazı Minerallerin Nükleer ve diğer Yöntemlerle İncelenmesi Ege Üniv. Fen Bilimleri Enstitüsü, İzmir 2007; pp 4.
6. 6. Bird, J.R, Williams, J.S, Ion Beams for Materials analaysis Acedemic Press: Australlia, 1989.
7. 7. Sanjeev, S, Kekuda, D, Effect of Annealing Temperature on the Structural and Optical Properties of Zinc Oxide (ZnO) Thin Films Prepared by Spin Coating Process; ICMST 2012(2015); 73 01214.
8. 8. TsungHsieh, P, ShanChin, H, KuanChang, P, MingWang, C, ChungChen, Y, PhonHoung, M. 2010. Effects of the annealing environment on green luminescence of ZnO thin films. ,Physica B: Condensed Matter; 405(11): 2526-2529. 9. Rodnyi, P.A and Khodyuk, I.V. 2011. Optical and Luminescence Properties of Zinc Oxides. Optics and Spectroscopy; 111(5): 776-786.

9. 10. Rodnyi, P.A, Chernenko, K.A, Venevtsev I.D. 2018. Mechanisms of ZnO Luminescence in the visible Spectral Region. Spectroscopy of Considered States; 125(3): 357-363.
10. 11. Çetin, A, Farklı Metalik İyonlarla Bombalanan ZnO Örneklerinin Fiziksel ve Yapısal Özelliklerinin Nükleer,Lüminesans ve Diğer Teknikler Kullanılarak İncelenmesi. Ege Üniversitesi Fen Bilimleri Enstitüsü, 2007.