Sökning: onr:"swepub:oai:DiVA.org:kth-174101" >
Effect of X-ray irr...
-
Pevere, FedericoKTH,Materialfysik, MF
(författare)
Effect of X-ray irradiation on the blinking of single silicon nanocrystals
- Artikel/kapitelEngelska2015
Förlag, utgivningsår, omfång ...
-
2015-09-21
-
Wiley-VCH Verlagsgesellschaft,2015
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kth-174101
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174101URI
-
https://doi.org/10.1002/pssa.201532652DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
QC 20151001
-
Photoluminescence (PL) intermittency (blinking) observed for single silicon nanocrystals (Si-NCs) embedded in oxide is usually attributed to trapping/de-trapping of carriers in the vicinity of the NC. Following this model, we propose that blinking could be modified by introducing new trap sites, for example, via X-rays. In this work, we present a study of the effect of X-ray irradiation (up to 65 kGy in SiO) on the blinking of single Si-NCs embedded in oxide nanowalls. We show that the luminescence characteristics, such as spectrum and life-time, are unaffected by X-rays. However, substantial changes in ON-state PL intensity, switching frequency, and duty cycle emerge from the blinking traces, while the ON- and OFF- time distributions remain of mono-exponential character. Although we do not observe a clear monotonic dependence of the blinking parameters on the absorbed dose, our study suggests that, in the future, Si-NCs could be blinking-engineered via X-ray irradiation.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Bruhn, BenjaminKTH,Material- och nanofysik(Swepub:kth)u14enpcp
(författare)
-
Sangghaleh, FatemehKTH,Materialfysik, MF(Swepub:kth)u1v7jb19
(författare)
-
Hormozan, YasharKTH,Materialfysik, MF(Swepub:kth)u1wl48ko
(författare)
-
Sychugov, IlyaKTH,Materialfysik, MF(Swepub:kth)u1cgceze
(författare)
-
Linnros, JanKTH,Materialfysik, MF(Swepub:kth)u1t79mee
(författare)
-
KTHMaterialfysik, MF
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Physica Status Solidi (a) applications and materials science: Wiley-VCH Verlagsgesellschaft212:121862-63001862-6319
Internetlänk
Hitta via bibliotek
Till lärosätets databas