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Hybrid Silicon Nanocrystals for Color-Neutral and Transparent Luminescent Solar Concentrators
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. CNR-IMM Bologna, Bologna, Italy. Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy.ORCID iD: 0000-0003-4598-9556
Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy.
Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy.
Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy.
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2019 (English)In: ACS Photonics, E-ISSN 2330-4022Article in journal (Refereed) Epub ahead of print
Abstract [en]

One of the most detrimental loss mechanisms in Luminescent Solar Concentrators (LSCs) is reabsorption of emitted light from the luminophore. Silicon Nanocrystals (SiNCs) offer a solution due to the high apparent Stokes shift, but the poor absorption properties limit their performance as LSC luminophores. Coupling an organic dye to SiNCs represents a smart approach to obtain sensitization of SiNC luminescence by the organic dyes, thus, resulting in tunable and improved optical properties of LSCs. In particular, 9,10-diphenylanthracene was employed as a UV sensitizer for SiNCs in order to produce LSCs with an aesthetic appearance suitable to smart window application and optical efficiency as high as 4.25%. In addition, the role of the energy transfer process on LSC performance was elucidated by a thorough optical and photovoltaic characterization.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019.
Keywords [en]
silicon nanoparticles, quantum dots, photovoltaic devices, organic dyes, anthracene, energy transfer
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Experimental Physics
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URN: urn:nbn:se:ltu:diva-75904DOI: 10.1021/acsphotonics.9b00802OAI: oai:DiVA.org:ltu-75904DiVA, id: diva2:1349436
Available from: 2019-09-09 Created: 2019-09-09 Last updated: 2019-09-09

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Mazzaro, RaffaelloVomiero, Alberto

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