Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 562016
Title Non-resonant X-ray/laser interaction spectroscopy as a method for assessing charge competition, trapping and luminescence efficiency in wide band-gap materials
Author(s) Poolton, N.R.J.; Bos, A.J.J.; Wallinga, J.; Haas, J.T.M. De; Dorenbos, P.; Vries, L. De; Kars, R.H.; Jones, G.O.; Drozdowski, W.
Source Journal of Luminescence 130 (2010)8. - ISSN 0022-2313 - p. 1404 - 1414.
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) OSL - Radioluminescence - TL - Trapping

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, Lu 3Al5O12:Pr, Al2O3:C, natural sodium feldspar NaAlSi3O8, cubic BN and type IIa natural diamond). By ramping the temperature from 10 to 320 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.

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