title: Light-Harvesting Antennae Based on Silicon Nanocrystals.
abstract: Silicon (Si) nanocrystals are relatively strong light emitters, but are weak light absorbers as a result of their indirect band gap. One way to enhance light absorption is to functionalize the nanocrystals with chromophores that are strong light absorbers. By designing systems that enable efficient energy transfer from the chromophore to the Si nanocrystal, the brightness of the nanocrystals can be significantly increased. There have now been a few experimental systems in which covalent attachment of chromophores, efficient energy transfer and significantly increased brightness have been demonstrated. This review discusses progress on these systems and the remaining challenges.
authors: Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
authors: Francesco
authors: F
authors: Romano
authors: Department of Chemical Engineering, Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin, Austin, TX, 78712, USA.
authors: Yixuan
authors: Y
authors: Yu
authors: Department of Chemical Engineering, Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas at Austin, Austin, TX, 78712, USA. korgel@che.utexas.edu.
authors: Brian A
authors: BA
authors: Korgel
authors: Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
authors: Giacomo
authors: G
authors: Bergamini
authors: Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy. paola.ceroni@unibo.it.|Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLAR-CHEM), Unità di Bologna, Bologna, Italy. paola.ceroni@unibo.it.
authors: Paola
authors: http://orcid.org/0000-0001-8916-1473
authors: P
authors: Ceroni
keywords: Brightness; Energy transfer; Indirect band gap semiconductor; Luminescence; Quantum dots