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Temperature‐dependent photoluminescence study of ErSc 2 N@C 80 and Er 2 ScN@C 80 fullerenes
Author(s) -
Tiwari Archana,
Dantelle Géraldine,
Porfyrakis Kyriakos,
Ardavan Arzhang,
Briggs G. Andrew D.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200879577
Subject(s) - photoluminescence , fullerene , excited state , atmospheric temperature range , ion , cluster (spacecraft) , analytical chemistry (journal) , chemistry , field (mathematics) , materials science , crystallography , atomic physics , physics , thermodynamics , optoelectronics , organic chemistry , computer science , programming language , mathematics , pure mathematics
The photoluminescence study of the Er 3+ ion in ErSc 2 N@C 80 and Er 2 ScN@C 80 fullerenes in the temperature range of 5 K to 80 K is presented. New emission peaks are observed for both fullerenes above 20 K. These peaks arise from thermally populated crystal‐field levels of the excited state. An anomalous behaviour of the PL peak area is observed with an increasing temperature which reveals an internal rearrangement of the cluster ErSc 2 N in ErSc 2 N@C 80 . (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)