id:"swepub:oai:research.chalmers.se:af98f317-fa49-4ea8-a781-e8b932cf07ae"
Search: id:"swepub:oai:research.chalmers.se:af98f317-fa49-4ea8-a781-e8b932cf07ae" > Controlling disorde...
- 1 of 1
- Previous record
- Next record
- To hitlist
Controlling disorder in the ZnGa2O4:Cr3+ persistent phosphor by Mg2+ substitution
-
- Basavaraju, N. (author)
- Indian Institute of Science,Goa University
-
- Priolkar, K. R. (author)
- Goa University
-
- Bessiere, A. (author)
- Institut de Recherche de Chimie Paris
- show more...
- show less...
- (creator_code:org_t)
- 2017
- 2017
- English.
- In: Physical Chemistry Chemical Physics. - : Royal Society of Chemistry (RSC). - 1463-9084 .- 1463-9076. ; 19:2, s. 1369-1377
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We have studied in this work the effect of increasing structural disorder on the persistent luminescence of a Cr3+ doped zinc gallate spinel. This disorder was introduced by progressive substitution of Zn2+ by Mg2+ ions, and was studied by photoluminescence, X-ray diffraction, extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES) and electron paramagnetic resonance (EPR) spectroscopy. It was found that increasing the Mg/Zn substitution decreases the number of Cr3+ in undistorted sites and increases the number of Cr3+ with neighbouring antisite defects and with neighbouring Cr3+ ions (referred to as Cr clusters), which in turn decreases the intensity of persistent luminescence. Both XANES and EPR spectra could be simulated by a linear combination of Cr3+ spectra with three types of Cr3+ environments. The increasing disorder was found to be correlated with a decrease of the average Cr-O bond length and a decrease of crystal field strength experienced by Cr3+ ions.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
- Physical Chemistry Chemical Physics (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Basavaraju, N.
- Priolkar, K. R.
- Bessiere, A.
- Sharma, Suchinde ...
- Gourier, D.
- Binet, L.
- show more...
- Viana, B.
- Emura, S.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Condensed Matter ...
- Articles in the publication
- Physical Chemist ...
- By the university
- Chalmers University of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
