Hybrid Silicon Nanocrystals for Color-Neutral and Transparent Luminescent Solar Concentrators

Document identifier: oai:DiVA.org:ltu-75904
Access full text here:10.1021/acsphotonics.9b00802
Keyword: Natural Sciences, Physical Sciences, Other Physics Topics, Naturvetenskap, Fysik, Annan fysik, Silicon nanoparticles, Quantum dots, Photovoltaic devices, Organic dyes, Anthracene, Energy transfer, Experimentell fysik, Experimental Physics
Publication year: 2019
Relevant Sustainable Development Goals (SDGs):
SDG 9 Industry, innovation and infrastructureSDG 11 Sustainable cities and communities
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Abstract:

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.

Authors

Raffaello Mazzaro

Luleå tekniska universitet; Materialvetenskap; CNR-IMM Bologna, Bologna, Italy. Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Alessandro Gradone

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Sara Angeloni

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Giacomo Morselli

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Pier Giorgio Cozzi

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Francesco Romano

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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Alberto Vomiero

Luleå tekniska universitet; Materialvetenskap; Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Venezia Mestre, Italy
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Paola Ceroni

Chemistry Department Giacomo Ciamician, University of Bologna, Bologna, Italy
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