Sökning: id:"swepub:oai:DiVA.org:kth-22141" >
Effects of proton i...
Effects of proton irradiation on luminescence emission and carrier dynamics of self-assembled III-V quantum dots
- Artikel/kapitelEngelska2002
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kth-22141
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-22141URI
-
https://doi.org/10.1109/TNS.2002.806018DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
QC 20100525
-
The effects of proton irradiation (1.5 MeV) on photoluminescence intensities and carrier dynamics were compared between III-V quantum dots and similar quantum well structures. A significant enhancement in radiation tolerance is seen with three-dimensional (3-D) quantum confinement.. Measurements were carried out in different quantum dot (QD) structures, varying in material (InGaAs/GaAs and InAlAS/AlGaAS), QD surface density (4 x 10(8) to 3 x 10(10) cm(-2)), and substrate orientation [(100) and (311) B]. Similar trends were observed for all QD samples. A slight increase in PL emission after low to intermediate proton doses, are also observed in InGaAs/GaAs (100) QD structures. The latter is explained in terms of more efficient carrier transfer from the wetting layer via radiation-induced defects.
Ämnesord och genrebeteckningar
-
carrier dynamics
-
compound semiconductors
-
displacement damage
-
photoluminescence
-
Stranski-Krastanow quantum dots
-
enhanced radiation hardness
-
light-emitting-diodes
-
deep levels
-
gaas
-
damage
-
lasers
-
transformation
-
dependence
-
wells
-
degradation
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Marcinkevicius, SauliusKTH,Mikroelektronik och informationsteknik, IMIT(Swepub:kth)u16tz6ld
(författare)
-
Siegert, J.
(författare)
-
Cechavicius, B.
(författare)
-
Magness, B.
(författare)
-
Taylor, W.
(författare)
-
Lobo, C.
(författare)
-
KTHMikroelektronik och informationsteknik, IMIT
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:IEEE Transactions on Nuclear Science49:6, s. 2844-28510018-94991558-1578
Internetlänk
Hitta via bibliotek
Till lärosätets databas