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Photoinduced Relaxation Dynamics in Iron(II) Spin-Crossover Nanoparticles: The Significance of Crystallinity

Authors

  • Dr. Pradip Chakraborty,

    1. Département de Chimie Physique, Université de Genève, 30, quai Ernest Ansermet, 1211 Genève (Switzerland)
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  • Dr. Marie-Laure Boillot,

    1. ICMMO-ECI, UMR CNRS 8182, Université Paris-Sud, 15 Rue G. Clemenceau, 91405 Orsay (France)
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  • Dr. Antoine Tissot,

    Corresponding author
    1. Département de Chimie Physique, Université de Genève, 30, quai Ernest Ansermet, 1211 Genève (Switzerland)
    • Département de Chimie Physique, Université de Genève, 30, quai Ernest Ansermet, 1211 Genève (Switzerland)

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  • Prof. Andreas Hauser

    Corresponding author
    1. Département de Chimie Physique, Université de Genève, 30, quai Ernest Ansermet, 1211 Genève (Switzerland)
    • Département de Chimie Physique, Université de Genève, 30, quai Ernest Ansermet, 1211 Genève (Switzerland)

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  • This work was supported by the Swiss National Science Foundation (Grant No. 200020_137567). N. Amstutz is thanked for the synthesis of the starting compounds and C. Enachescu for his help in data modeling.

Abstract

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A switch in time: A fast precipitation technique was used to prepare 75 nm FeII spin-crossover nanocrystals. Their photoswitching dynamics, based on the light-induced excited spin-state trapping effect, has been investigated by means of optical spectroscopy. A significant variation of the switching proprieties is observed compared to similar but amorphous nanoparticles.

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