Liquid-Based Multijunction Molecular Solar Thermal Energy Collection Device

Zhihang Wang, Henry Moïse, Martina Cacciarini, Mogens Brøndsted Nielsen, Masa aki Morikawa, Nobuo Kimizuka, Kasper Moth-Poulsen

    研究成果: Contribution to journalArticle査読

    抄録

    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.

    本文言語英語
    ジャーナルAdvanced Science
    DOI
    出版ステータス受理済み/印刷中 - 2021

    All Science Journal Classification (ASJC) codes

    • 医学(その他)
    • 化学工学(全般)
    • 材料科学(全般)
    • 生化学、遺伝学、分子生物学(その他)
    • 工学(全般)
    • 物理学および天文学(全般)

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