Heterostructured Nanotetrapod Luminophores for Reabsorption Elimination within Luminescent Solar Concentrators
| Autor: | Calum K. Gordon, Lara D. Browne, Sanutep Chan, Matthew W. Brett, Chase Zemke-Smith, Jake Hardy, Michael B. Price, Nathaniel J. L. K. Davis |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | ACS Applied Materials & Interfaces. 15:17914-17921 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.3c01222 |
| Popis: | Luminescent solar concentrators (LSCs) concentrate light via luminescence within a planar-waveguide and have potential use for building-integrated photovoltaics. However, their commercialization and potential applications are currently hindered greatly by photon reabsorption, where emitted waveguided light is parasitically reabsorbed by a luminophore. Nanotetrapod semiconductor materials have been theorized to be excellent luminophores for LSCs owing to their inherently large Stokes shifts. Here we present the first nanotetrapod-based LSCs (5 × 5 × 0.3 cm3) reported in the literature. External quantum efficiencies as high as 4.9 ± 0.5% were achieved under AM1.5G conditions. We also perform an in-depth investigation by optical characterization of the different operational metrics of our nanotetrapod-based LSCs and show reabsorption to be eliminated (mean number of average reabsorption events per photon equal to 0.00) in our most extended nanotetrapod devices. |
| Databáze: | OpenAIRE |
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