Excitation energy transfer and low-temperature anomaly in luminescence of RE3+ codoped PLZT ceramics

Autor:	Markus Herren, S. Murakami, Makoto Morita
Rok vydání:	1998
Předmět:	Phase transition Photoluminescence Materials science Doping Biophysics General Chemistry Condensed Matter Physics Biochemistry Molecular physics Atomic and Molecular Physics and Optics Ion visual_art visual_art.visual_art_medium Ceramic Porosity Luminescence Excitation Nuclear chemistry
Zdroj:	Journal of Luminescence. :460-463
ISSN:	0022-2313
DOI:	10.1016/s0022-2313(97)00272-x
Popis:	Disordered PLZT(9/65/35) ceramics doped with (1) Tb3+Sm3+ and (2) Eu3+Yb3+ ions are investigated in luminescence and decay measurements at temperatures between 10 and 300 K. Resonant (1) and non-resonant (2) energy transfer mechanisms are found to give critical energy transfer distances of about 0.45 nm and they are confined by domain boundaries and porous size. PLZT: Eu3+ is found to elucidate luminescence anomalies at around 160 K which correspond to low temperature phase transitions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::37452efa81e745ed9e961bc61a34f925 https://doi.org/10.1016/s0022-2313(97)00272-x Zobrazit plný text záznamu Full Text from ScienceDirect