List of publications

This thesis consists of the following original articles that have been published or accepted in international journals. The papers are referred to in the text by the accompanying Roman numerals.

I

M. Leskelä, W.-M. Li, and M. Ritala, Materials in thin film electroluminescent devices. Semiconductors and Semimetals, Electroluminescence II Vol. 65 (ed. G. Müller), Academic Press, 1999, pp. 107-182.

II W.-M. Li and M. Leskelä, Luminescence of Ce3+ in alkaline earth chloride lattices, Mater. Lett. 28 (1996) 491-498.

III W.-M. Li, M. Ritala, M. Leskelä, R. Lappalainen, J. Jokinen, E. Soininen, B. Hüttle, E. Nykänen, and L. Niinistö, Elemental characterization of electroluminescent SrS:Ce thin films, J. Appl. Phys. 84 (1998) 1029-1035.

IV

R. Lappalainen, J. Jokinen, W.-M. Li, M. Ritala, M. Leskelä, and E. Soininen, Complementary analysis of ALE-grown SrS based thin film electroluminescent structures with ion beam methods, Nucl. Instr. Meth. Phy. Res. B 132 (1997) 685-696.

V W.-M. Li, M. Ritala, M. Leskelä, R. Lappalainen, M. Karjalainen, E. Soininen, C. Barthou, P. Benalloul, J. Benoit, E. Nykänen, and L. Niinistö, Ion implantation of SrS:Ce thin films, J. Soc. Information Display., (1998) in press.
VI

W.-M. Li, M. Ritala, M. Leskelä, R. Lappalainen, E. Soininen, L. Niinistö, C. Barthou, P. Benalloul, and J. Benoit, Improved blue luminescence in Ag-codoped SrS:Ce thin films made by atomic layer epitaxy and ion implantation, Appl. Phys. Lett. 74 (1999) 2298-2300.

VII W.-M. Li, M. Ritala, M. Leskelä, R. Lappalainen, L. Niinistö, E. Soininen, S.-S. Sun, W. Tong, and C.J. Summers, Photo- and electroluminescence of SrS:Cu and SrS:Ag,Cu,Ga thin films, J. Appl. Phys., 86 (1999) 5017-5025.