Recombination luminescence and EPR of Mn doped Li.sub.2./sub.B.sub.4./sub.O.sub.7./sub. single crystals

0479504 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
Romet, I. - Buryi, Maksym - Corradi, G. - Feldbach, E. - Laguta, Valentyn - Tichy-Racs, E. - Nagirnyi, V.
Recombination luminescence and EPR of Mn doped Li₂B₄O₇ single crystals.
Optical Materials. Roč. 70, Aug (2017), s. 184-193. ISSN 0925-3467. E-ISSN 1873-1252
Grant CEP: GA MŠMT LO1409; GA MŠMT LM2015088; GA ČR GA17-09933S
Institucionální podpora: RVO:68378271
Klíčová slova: lithium tetraborate * Q-band EPR * photoluminescence
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.320, rok: 2017

Manganese doped Li2B4O7 (LTB) crystals have been studied using luminescence and EPR spectroscopy. For the first time the incorporation of Mn2+ impurity ions into the LTB lattice was studied by Q-band EPR (microwave frequency f = 33.818 GHz). Mn2+ ions are shown to substitute dominantly at lithium sites charge compensated by a lithium vacancy. Excitation spectra of the Mn2+ ion emission have been studied in the energy range of 2.5-20 eV ascribing weak excitation bands up to 5.5 eV to specific transitions within the same 3d5 electronic configuration according to the Tanabe-Sugano diagram.

Trvalý link: http://hdl.handle.net/11104/0275487