Enhanced light-harvesting of protein-pigment complexes assisted by a quantum dot antenna
| Autor: | Guido Goldoni, Gabriel Gil, Stefano Corni |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
NIR quantum dot
Materials science Light-harvesting antenna FMO BChl a FRET hybrid material FOS: Physical sciences 02 engineering and technology Hybrid material 010402 general chemistry 7. Clean energy 01 natural sciences chemistry.chemical_compound Physics - Chemical Physics Absorption (electromagnetic radiation) Chemical Physics (physics.chem-ph) Coupling Quantum Physics business.industry Computational Physics (physics.comp-ph) 021001 nanoscience & nanotechnology 0104 chemical sciences Förster resonance energy transfer chemistry Nanocrystal Quantum dot Optoelectronics Bacteriochlorophyll Antenna (radio) Quantum Physics (quant-ph) 0210 nano-technology business Physics - Computational Physics |
| Zdroj: | 2018 Nanotechnology for Instrumentation and Measurement (NANOfIM) NANOTECHNOLOGY FOR INSTRUMENTATION AND MEASUREMENT (NANOFIM), 07/11/2018-08/11/2018 info:cnr-pdr/source/autori:Gil, Gabriel; Goldoni, Guido; Corni, Stefano/congresso_nome:NANOTECHNOLOGY FOR INSTRUMENTATION AND MEASUREMENT (NANOFIM)/congresso_luogo:/congresso_data:07%2F11%2F2018-08%2F11%2F2018/anno:2018/pagina_da:/pagina_a:/intervallo_pagine |
| Popis: | We predict the enhanced light harvesting of a protein-pigment complex when assembled to a quantum dot (QD) antenna. Our prototypical nanoassembly setup is composed of a Fenna-Mattews-Olson system hosting 8 Bacteriochlorophyll (BChl) a dyes, and a near-infrared emitting CdSe$_x$Te$_{(1-x)}$/ZnS alloy-core/shell nanocrystal. BChl a has two wide windows of poor absorption in the green and orange-red bands, precisely where most of the sunlight energy lies. The selected QD is able to collect sunlight efficiently in a broader band and funnel its energy by a (non-radiative) F\"orster resonance energy transfer mechanism to the dyes embedded in the protein. By virtue of the coupling between the QD and the dyes, the nanoassembly absorption is dramatically improved in the poor absorption window of the BChl a. Comment: 5 pages, 3 figures, presented in the NANOFIM 2018 conference in Mexico City |
| Databáze: | OpenAIRE |
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