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Enhanced light-harvesting of protein-pigment complexes assisted by a quantum dot antenna

arXiv
Authors: Gabriel Gil, Guido Goldoni, Stefano Corni

Year

2020

Paper ID

21614

Status

Preprint

Abstract Read

~2 min

Abstract Words

127

Citations

N/A

Abstract

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 CdSexTe(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) Förster 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.

Why This Paper Matters

  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • We predict the enhanced light harvesting of a protein-pigment complex when assembled to a quantum dot (QD) antenna.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2008.03341 [2] arXiv https://arxiv.org/abs/2008.03341 [3] Publisher https://arxiv.org/abs/2008.03341

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