Luminescence properties of Y3Al5O12:Ce nanoceramics

作者：Zorenko Yu^*; Voznyak T; Gorbenko V; Zych E; Nizankovski S; Dan'ko A; Puzikov V

来源：Journal of Luminescence, 2011, 131(1): 17-21.

DOI：10.1016/j.jlumin.2010.08.015

• Luminescence
• Ce3+ ions
• Optical ceramics
• Single crystal and single crystalline films
• Antisite defects
• Oxygen vacancies

Comparative analysis of the luminescent properties of Y3Al5O12 Ce (YAG Ce) transparent optical ceramics (OC) with those of single crystal (SC) and single crystalline film (SCF) analogues has been performed under excitation by pulsed synchrotron radiation in the fundamental absorption range of YAG host It has been shown that the properties of YAG Ce DC are closer to the properties of the SCF counterpart where Y-Al antisite defects are completely absent rather than to the properties of SC of this garnet with large concentration of Y-Al antisite defects At the same time the luminescence spectra of YAG Ce OC show weak emission bands in the 200-470 nm range related to Y-Al antisite defects and charged oxygen vacancies (F+ and F centers) YAG Ce OC also possesses significantly larger contribution of slow components in the Ce3+ luminescence decay under high-energy excitation in comparison with SC and SCF of this garnet due t

• 出版日期2011-1