Optical characterization of individual quantum dots

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Fältnamn	Indikatorer	Metadata
000		03952naa a2200469 4500
001		oai:DiVA.org:liu-77523
003		SwePub
008		120522s2012 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-775232 URI
024	7	a https://doi.org/10.1016/j.physb.2011.09.0642 DOI
040		a (SwePub)liu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Holtz, Per-Olofu Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)perho67
245	1 0	a Optical characterization of individual quantum dots
264	1	b Elsevier,c 2012
338		a print2 rdacarrier
500		a Funding Agencies\|Swedish Research Council (VR)\|\|Swedish Foundation for Strategic Research (SSF)\|\|Nano-N consortium\|\|Science Foundation Ireland\|05/IN.1/I25\|Knut and Alice Wallenberg Foundation\|\|INSPIRE\|\|
520		a Optical characterization of single quantum dots (QDs) by means of micro-photoluminescence (mu PL) will be reviewed. Both QDs formed in the Stranski-Krastanov mode as well as dots in the apex of pyramidal structures will be presented. For InGaAs/GaAs dots, several excitonic features with different charge states will be demonstrated. By varying the magnitude of an external electric or magnetic field and/or the temperature, it has been demonstrated that the transportation of carriers is affected and accordingly the charge state of a single QD can be tuned. In addition, we have shown that the charge state of the QD can be controlled also by pure optical means, i.e. by altering the photo excitation conditions. Based on the experience of the developed InAs/GaAs QD system, similar methods have been applied on the InGaN/GaN QD system. less thanbrgreater than less thanbrgreater thanThe coupling of LO phonons to the QD emission is experimentally examined for both charged and neutral excitons in single InGaAs/GaAs QDs in the apex of pyramidal structures. It is shown that the positively charged exciton exhibits a significantly weaker LO phonon coupling in the mu PL spectra than the neutral and negatively charged species, a fact, which is in consistency with model simulations performed.
653		a Quantum dots
653		a Pyramid
653		a Exciton
653		a Photoluminescence
653		a TECHNOLOGY
653		a TEKNIKVETENSKAP
700	1	a Hsu, Chih-Weiu Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)chihs22
700	1	a Larsson, L Au Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut
700	1	a Karlsson, K Fredriku Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)freka74
700	1	a Dufåker, Danielu Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)dandu48
700	1	a Lundskog, Andersu Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)andlu37
700	1	a Forsberg, Urbanu Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)urbfo25
700	1	a Janzén, Eriku Linköpings universitet,Halvledarmaterial,Tekniska högskolan4 aut0 (Swepub:liu)erija14
700	1	a Moskalenko, Evgeniiu Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan4 aut0 (Swepub:liu)evgmo15
700	1	a Dimastrodonato, Vu National University of Ireland University of Coll Cork4 aut
700	1	a Mereni, Lu National University of Ireland University of Coll Cork4 aut
700	1	a Pelucchi, Eu National University of Ireland University of Coll Cork4 aut
710	2	a Linköpings universitetb Halvledarmaterial4 org
773	0	t Physica. B, Condensed matterd : Elsevierg 407:10, s. 1472-1475q 407:10<1472-1475x 0921-4526x 1873-2135
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-77523
856	4 8	u https://doi.org/10.1016/j.physb.2011.09.064

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Av författaren/redakt...: Holtz, Per-Olof; Hsu, Chih-Wei; Larsson, L A; Karlsson, K Fred ...; Dufåker, Daniel; Lundskog, Anders; visa fler...; Forsberg, Urban; Janzén, Erik; Moskalenko, Evge ...; Dimastrodonato, ...; Mereni, L; Pelucchi, E; visa färre...

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Av lärosätet: Linköpings universitet

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