Energy transfer and charge carrier capture processes in wide-band-gap scintillators Export

@article{citeulike:4219677, abstract = {Electron and hole trapping phenomena below room temperature were studied by simultaneous use of electron paramagnetic resonance (EPR) and thermostimulated luminescence (TSL) experiments in Ce-doped YAlO3, Y3Al5O12 and Lu3Al5O12 single crystals. Charge-carrier trapping associated with O- centers and antisite Y(Lu)Al defects in perovskite and garnet structures, respectively, was evidenced by EPR and associated with the dominant TSL peaks. Existence of F+ centers was proved by EPR in YAlO3. A Ce3+ ion at the Al site and spatially correlated CeLu and LuAl centers were evidenced in Lu3Al5O12 by the same method. Spatial correlation of the latter two centers is further supported by the associated tunneling-driven radiative recombination process evidenced by phosphorescence decay. ({\copyright} 2007 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim)}, address = {Institute of Physics AS CR, Cukrovarnicka 10, 162 53 Prague, Czech Republic; Institute for Problems of Material Science, Ukrainian Academy of Sciences, Krjijanovskogo 3, 03142 Kiev, Ukraine; Dipartimento di Scienza dei Materiali dell'Universita di Milano ldquoBicoccardquo, Via Cozzi 53, 20 125 Milano, Italy}, author = {Nikl, M. and Laguta, V. V. and Vedda, A.}, citeulike-article-id = {4219677}, citeulike-linkout-0 = {http://dx.doi.org/10.1002/pssa.200673866}, citeulike-linkout-1 = {http://www3.interscience.wiley.com/cgi-bin/abstract/114134051/ABSTRACT}, doi = {10.1002/pssa.200673866}, journal = {physica status solidi (a)}, keywords = {energytransfer, garnet, luag}, number = {3}, pages = {683--689}, posted-at = {2009-03-25 14:32:38}, priority = {2}, title = {Energy transfer and charge carrier capture processes in wide-band-gap scintillators}, url = {http://dx.doi.org/10.1002/pssa.200673866}, volume = {204}, year = {2007} }

TY - JOUR ID - citeulike:4219677 L3 - citeulike-article-id:4219677 N2 - Electron and hole trapping phenomena below room temperature were studied by simultaneous use of electron paramagnetic resonance (EPR) and thermostimulated luminescence (TSL) experiments in Ce-doped YAlO3, Y3Al5O12 and Lu3Al5O12 single crystals. Charge-carrier trapping associated with O- centers and antisite Y(Lu)Al defects in perovskite and garnet structures, respectively, was evidenced by EPR and associated with the dominant TSL peaks. Existence of F+ centers was proved by EPR in YAlO3. A Ce3+ ion at the Al site and spatially correlated CeLu and LuAl centers were evidenced in Lu3Al5O12 by the same method. Spatial correlation of the latter two centers is further supported by the associated tunneling-driven radiative recombination process evidenced by phosphorescence decay. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) IS - 3 JF - physica status solidi (a) AD - Institute of Physics AS CR, Cukrovarnicka 10, 162 53 Prague, Czech Republic; Institute for Problems of Material Science, Ukrainian Academy of Sciences, Krjijanovskogo 3, 03142 Kiev, Ukraine; Dipartimento di Scienza dei Materiali dell'Universita di Milano ldquoBicoccardquo, Via Cozzi 53, 20 125 Milano, Italy EP - 689 TI - Energy transfer and charge carrier capture processes in wide-band-gap scintillators VL - 204 SP - 683 KW - energytransfer KW - garnet KW - luag AU - Nikl, M AU - Laguta, VV AU - Vedda, A PY - 2007/// UR - http://dx.doi.org/10.1002/pssa.200673866 ER -