Characterization of enhanced emission from excimer laser treated ZnO ceramics using one- and two-photon luminescence spectroscopy and microscopy

• Published in: Journal of luminescence Vol. 106; no. 1; pp. 1 - 7
• Main Authors: Wen, X.M, Xu, Paul, Lukins, Philip B
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 2004; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Excimer laser irradiation; Luminescence spectroscopy; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other solid inorganic materials; Photoluminescence; Physics; Two-photon microscopy; ZnO sintered ceramics; 81.05.Je; 78.55.Hx; Excimer laser irradiation; Photoluminescence; 78.20.Nv; Two-photon microscopy; 81.40.Tv; 82.50.Pt; Luminescence spectroscopy; ZnO sintered ceramics; Radiation effects; 78.55.Hx: 81.05.Je; Inorganic compounds; Vacancies; Line shape; Semiconductor materials; Transition element compounds; Experimental study; 82.50.Pt ZnO sintered ceramics; Time resolved spectra; Oxide ceramics; Luminescence decay; Zinc oxides; Acceptor donor pair; Laser radiation; Two-photon processes
• ISSN: 0022-2313; 1872-7883
• DOI: 10.1016/S0022-2313(03)00127-3

The effects of excimer laser irradiation on the surface structure and luminescence of sintered ZnO ceramics were investigated. Photoluminescence spectra of three materials (as-prepared ZnO ceramic, the ceramic blackened by high-energy irradiation and the recovered ceramic treated using lower-energy irradiation) were compared in the visible region at room temperature and 10 K. Each material exhibited a green luminescence band but the blackened ZnO ceramics had the strongest emission in the visible region while the recovered ceramics had significantly shorter decay times.