Bi.sup.3+./sup.-Ce.sup.3+./sup. energy transfer and luminescent properties of LuAG:Bi,Ce and YAG:Bi,Ce single crystalline films

0397990 - FZÚ 2014 RIV NL eng J - Článek v odborném periodiku
Zorenko, Y. - Gorbenko, V. - Voznyak, T. - Nikl, Martin - Beitlerová, Alena - Jarý, Vítězslav
Bi³⁺-Ce³⁺ energy transfer and luminescent properties of LuAG:Bi,Ce and YAG:Bi,Ce single crystalline films.
Journal of Luminescence. Roč. 134, FEB (2013), s. 539-543. ISSN 0022-2313. E-ISSN 1872-7883
Grant CEP: GA ČR GA202/08/0893
Institucionální podpora: RVO:68378271
Klíčová slova: luminescence * energy transfer * garnets * single crystalline films * Bi³⁺ and Ce³⁺ ions
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 2.367, rok: 2013
http://www.sciencedirect.com/science/article/pii/S0022231312004425

The absorption, cathodoluminescence, excitation spectra of photoluminescence (PL) and PL decay kinetics were studied at 300 K for the double Bi3+–Ce3+-doped and separately Bi3+- and Ce3+-doped Y3Al5O12 (YAG) and Lu3Al5O12 (LuAG) single crystalline film phosphors grown by liquid phase epitaxy method. Emission bands in the UV range arising from the intrinsic radiative transitions of Bi3+-based centers, and emission bands in the visible range related to the luminescence of excitons localized around Bi-based centers, were identified in both Bi–Ce and Bi-doped YAG and LuAG SCF. Energy transfers from the host lattice to Bi3+ and Ce3+ ions and from Bi3+ to Ce3+ ions were investigated. Competition between Bi3+ and Ce3+ ions in the energy transfer from the YAG and LuAG hosts was evidenced.
Trvalý link: http://hdl.handle.net/11104/0225569