Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5402447 | Journal of Luminescence | 2010 | 11 Pages |
Abstract
Using a conventional fast-shuttered laboratory X-ray source in combination with pulsed laser diode modules, the possibilities for undertaking X-ray/laser interaction spectroscopy in wide band-gap luminescent materials are explored. It is shown that in such materials, a variety of X-ray/laser timing sequences can extract complimentary information regarding the charge-carrier trapping, de-trapping and recombination processes. The effects on the luminescence are illustrated for six example materials (YPO4:Ce,Sm, Lu3Al5O12:Pr, Al2O3:C, natural sodium feldspar NaAlSi3O8, cubic BN and type IIa natural diamond). By ramping the temperature from 10 to 320Â K during repeated X-ray pump/laser-probe activation cycles, a rapid assessment can be made of the important thermally dependent changes to the charge carrier trapping competition processes.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
N.R.J. Poolton, A.J.J. Bos, J. Wallinga, J.T.M. de Haas, P. Dorenbos, L. de Vries, R.H. Kars, G.O. Jones, W. Drozdowski,