Liquid-Based Multijunction Molecular Solar Thermal Energy Collection Device
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Photoswitchable molecules-based solar thermal energy storage system (MOST) can potentially be a route to store solar energy for future use. Herein, the use of a multijunction MOST device that combines various photoswitches with different onsets of absorption to push the efficiency limit on solar energy collection and storage is explored. With a parametric model calculation, it is shown that the efficiency limit of MOST concept can be improved from 13.0% to 18.2% with a double-junction system and to 20.5% with a triple-junction system containing ideal, red-shifted MOST candidates. As a proof-of-concept, the use of a three-layered MOST device is experimentally demonstrated. The device uses different photoswitches including a norbornadiene derivative, a dihydroazulene derivative, and an azobenzene derivative in liquid state with different MOSTproperties, to increase the energy capture and storage behavior. This conceptional device introduces a new way of thinking and designing optimal molecular candidates for MOST, as much improvement can be made by tailoring molecules to efficiently store solar energy at specific wavelengths.
Originalsprog | Engelsk |
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Artikelnummer | 2103060 |
Tidsskrift | Advanced Science |
Vol/bind | 8 |
Udgave nummer | 21 |
Antal sider | 6 |
ISSN | 2198-3844 |
DOI | |
Status | Udgivet - 2021 |
Bibliografisk note
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© 2021 The Authors. Advanced Science published by Wiley-VCH GmbH
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