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Photostable Polymer/Si Nanocrystal Bulk Hybrids with Tunable Photoluminescence
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.ORCID iD: 0000-0002-0728-6684
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Material Physics, MF.ORCID iD: 0000-0002-5260-5322
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2016 (English)In: ACS PHOTONICS, ISSN 2330-4022, Vol. 3, no 9, 1575-1580 p.Article in journal (Refereed) Published
Abstract [en]

Solid polymer/Si nanocrystal bulk nanocomposites were fabricated from solutions of alkene- and hydride-terminated silicon nanocrystals (NCs) in toluene. The photoluminescence peak position of hydride-terminated SiNCs before polymerization was tuned by photoassisted hydrofluoric acid etching. Optical properties of obtained PMMA/NC hybrids, such as quantum yield, luminescence lifetime, and dispersion factor, were evaluated over time. Photostability of these transparent bulk polymer/SiNC hybrids over months was confirmed. The emission covers the visible to near-infrared range with a quantum yield of similar to 30-40% for yellow-red nanocomposites.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016. Vol. 3, no 9, 1575-1580 p.
Keyword [en]
silicon nanocrystals, photoluminescence, polymers, poly(methyl methacrylate), nanocomposites
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-194275DOI: 10.1021/acsphotonics.6600485ISI: 000384040900009ScopusID: 2-s2.0-84988647909OAI: oai:DiVA.org:kth-194275DiVA: diva2:1039905
Note

QC 20161025

Available from: 2016-10-25 Created: 2016-10-21 Last updated: 2016-10-25Bibliographically approved

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Marinins, AleksandrsLinnros, JanPopov, SergeiSychugov, Ilya
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