Repository logo
 
Publication

Carrier multiplication in germanium nanocrystals

2015-02Journal article Open access
Simple item page
dc.contributor.authorSaeed, Saba
dc.contributor.authorde Weerd, Chris
dc.contributor.authorStallinga, Peter
dc.contributor.authorSpoor, Frank C. M.
dc.contributor.authorHoutepen, Arjan J.
dc.contributor.authorSiebbeles, Laurens D. A.
dc.contributor.authorGregorkiewicz, Tom
dc.date.accessioned2018-12-07T14:52:56Z
dc.date.available2018-12-07T14:52:56Z
dc.date.issued2015-02
dc.description.abstractCarrier multiplication is demonstrated in a solid-state dispersion of germanium nanocrystals in a silicon-dioxide matrix. This is performed by comparing ultrafast photo-induced absorption transients at different pump photon energies below and above the threshold energy for this process. The average germanium nanocrystal size is approximately 5-6 nm, as inferred from photoluminescence and Raman spectra. A carrier multiplication efficiency of approximately 190% is measured for photo-excitation at 2.8 times the optical bandgap of germanium nanocrystals, deduced from their photoluminescence spectra.
dc.description.sponsorshipFoundation for Fundamental Research on Matter (FOM)
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1038/lsa.2015.24
dc.identifier.issn2047-7538
dc.identifier.urihttp://hdl.handle.net/10400.1/11277
dc.language.isoeng
dc.peerreviewedyes
dc.publisherChinese Acad Sciences, Changchun Inst Optics Fine Mechanics And Physics
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMultiple exciton generation
dc.subjectSilicon nanocrystals
dc.subjectAuger recombination
dc.subjectSolar-cells
dc.subjectQuantum confinement
dc.subjectImpact ionization
dc.subjectPbse nanorods
dc.subjectEfficiency
dc.subjectFilms
dc.subjectPhotoluminescence
dc.titleCarrier multiplication in germanium nanocrystals
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPagee251
oaire.citation.titleLight: Science and Applications
oaire.citation.volume4
person.familyNameStallinga
person.givenNamePeter
person.identifier2477494
person.identifier.ciencia-idC917-2333-5797
person.identifier.orcid0000-0002-9581-6875
person.identifier.scopus-author-id6701332987
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationa81fc5fb-94ec-4160-bfdc-ea33cfdbf216
relation.isAuthorOfPublication.latestForDiscoverya81fc5fb-94ec-4160-bfdc-ea33cfdbf216

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Saeed-2015-Carrier-multiplication-in-germanium.pdf
Size:
854.36 KB
Format:
Adobe Portable Document Format
Download

Collections

FCT2-Artigos (em revistas ou actas indexadas)