Solar Energy Storage by Molecular Norbornadiene-Quadricyclane Photoswitches: Polymer Film Devices

Advanced Science
Anne Ugleholdt PetersenKasper Moth-Poulsen

Abstract

Devices that can capture and convert sunlight into stored chemical energy are attractive candidates for future energy technologies. A general challenge is to combine efficient solar energy capture with high energy densities and energy storage time into a processable composite for device application. Here, norbornadiene (NBD)-quadricyclane (QC) molecular photoswitches are embedded into polymer matrices, with possible applications in energy storing coatings. The NBD-QC photoswitches that are capable of absorbing sunlight with estimated solar energy storage efficiencies of up to 3.8% combined with attractive energy storage densities of up to 0.48 MJ kg-1. The combination of donor and acceptor units leads to an improved solar spectrum match with an onset of absorption of up to 529 nm and a lifetime (t1/2) of up to 10 months. The NBD-QC systems with properties matched to a daily energy storage cycle are further investigated in the solid state by embedding the molecules into a series of polymer matrices revealing that polystyrene is the preferred choice of matrix. These polymer devices, which can absorb sunlight and over a daily cycle release the energy as heat, are investigated for their cyclability, showing multicycle reusability w...Continue Reading

References

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May 17, 2017·Chemical Communications : Chem Comm·Martina CacciariniMogens Brøndsted Nielsen
Jun 20, 2017·The Journal of Organic Chemistry·Vasiliy M MuzalevskiyValentine G Nenajdenko
Jul 7, 2018·Chemistry : a European Journal·Martyn JevricKasper Moth-Poulsen
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Sep 1, 2018·Chemical Society Reviews·Liqi DongWei Feng

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Citations

Mar 3, 2020·Organic & Biomolecular Chemistry·Mads MansøMogens Brøndsted Nielsen
Aug 17, 2020·Journal of Computational Chemistry·Olga V Dorofeeva
May 21, 2020·Chemistry : a European Journal·Martin Drøhse KildeMogens Brøndsted Nielsen
Jul 15, 2020·Accounts of Chemical Research·Jessica Orrego-HernándezKasper Moth-Poulsen
Oct 1, 2021·Chemical Society Reviews·Jana VolarićBen L Feringa
Nov 18, 2021·The Journal of Physical Chemistry Letters·Ryosuke AsatoTsuyoshi Kawai

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Methods Mentioned

BETA
X‐ray
NMR
differential scanning calorimetry
column chromatography

Software Mentioned

Seed
SHELXS
SHELXL

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