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Resonant energy transfer in Si Nanocrystal Solids

dc.contributor.authorLimpens, Rens
dc.contributor.authorLesage, Arnon
dc.contributor.authorStallinga, Peter
dc.contributor.authorPoddubny, Alexander N.
dc.contributor.authorFujii, Minoru
dc.contributor.authorGregorkiewicz, Tom
dc.date.accessioned2018-12-07T14:52:44Z
dc.date.available2018-12-07T14:52:44Z
dc.date.issued2015-08
dc.description.abstractEnergy exchange between closely packed semiconductor quantum dots allows for long-range transfer of electronic energy and enables new functionalities of nanostructured materials with a huge application potential in photonics, optoelectronics, and photovoltaics. This is illustrated by impressive advances of quantum-dot solids based on nanocrystals (NCs) of direct bandgap materials, where this effect has been firmly established. Regretfully, the (resonant) energy transfer in close-packed ensembles of NCs remains elusive for silicon the main material for electronic and photovoltaic industries. This is the subject of the present study in which we conclusively demonstrate this process taking place in dense dispersions of Si NCs in an SiO2 matrix. Using samples with different NC configurations, we can directly determine the wavelength dependent energy transfer rate and show that it (i) can be modulated by material parameters, and (ii) decreases with the NCs size, and thus being consistent with the energy flow proceeding from smaller to larger NCs. This result opens the way to new applications of Si NCs, requiring energy transport and extraction. In particular, it forms a fundamental step toward development of an excitonic all-Si solar cell, operating in some analogy to polymer devices.
dc.description.sponsorshipNanoNextNL
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1021/acs.jpcc.5b06339
dc.identifier.issn1932-7447
dc.identifier.urihttp://hdl.handle.net/10400.1/11188
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAmer Chemical Soc
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectQuantum-Dot Solids
dc.subjectSilicon nanocrystals
dc.subjectPhotoluminescence decay
dc.subjectTemperature
dc.subjectAbsorption
dc.titleResonant energy transfer in Si Nanocrystal Solids
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage19570
oaire.citation.issue33
oaire.citation.startPage19565
oaire.citation.titleJournal of Physical Chemistry C
oaire.citation.volume119
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

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