Energy level diagram for lanthanide-doped lanthanum orthovanadate

Materials Science and Engineering: B

Volumn 146, Issue 1-3, 2008, Pages 114-120

  Krumpel, Andreas H ^a   van der Kolk, Erik ^a   Dorenbos, Pieter ^a   Boutinaud, Philippe ^b   Cavalli, Enrico ^c   Bettinelli, Marco ^d  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b UNIVERSITÉ CLERMONT AUVERGNE   (France)

^c UNIVERSITY OF PARMA   (Italy)

^d UNIVERSITY OF VERONA   (Italy)

Author keywords

Dieke diagram; Energy level; Eu3+; Lanthanide; LaVO4; Photoluminescence; Pr3+; Tb3+

Indexed keywords

DOPING (ADDITIVES); ELECTRON ENERGY LEVELS; LIGHT EMISSION; PHOTOCONDUCTIVITY; PHOTOLUMINESCENCE;

DIEKE DIAGRAM; EMISSION MEASUREMENTS; ORTHOVANADATE;

LANTHANUM COMPOUNDS;

EID: 37349092266     PISSN: 09215107     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.mseb.2007.07.074     Document Type: Article

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12. PC measurements were done in a similar way as reported earlier [10]: the electrical contacts evaporated on two opposing faces of the same crystal were made of gold with a thickness of 30 nm or rather 6 nm where transparency was needed. The contact configuration was in such a way that the light was hitting the transparent part of the top contact therefore producing free charge carriers across the entire crystal. {A figure is presented} The excitation source was a 450 W xenon lamp (FL-1039) and the photocurrent was detected with an electrometer (EM, model 6517A, Keithley). The stabilized voltage supply of this electrometer was also used for applying 1000 V across the opposing electrodes. Again the spectra were corrected for the background (including dark current) and the xenon-lamp spectrum.