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NH2-MIL-53(Al): a high-contrast reversible solid-state nonlinear optical switch.

Pablo Serra-Crespo1, Monique A van der Veen, Elena Gobechiya

  • 1Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, The Netherlands.

Journal of the American Chemical Society
|May 15, 2012
PubMed
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The metal-organic framework NH(2)-MIL-53(Al) exhibits nonlinear optical switching. This solid-state material

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Optics

Background:

  • Nonlinear optical (NLO) materials are crucial for advanced photonic applications.
  • Metal-organic frameworks (MOFs) offer tunable structures for novel material properties.
  • Solid-state NLO switching in MOFs remains an underexplored area.

Purpose of the Study:

  • To investigate the nonlinear optical switching behavior of NH(2)-MIL-53(Al).
  • To understand the mechanism behind the observed optical switching in this MOF.

Main Methods:

  • Synthesis and characterization of NH(2)-MIL-53(Al).
  • Experimental measurement of nonlinear optical properties.
  • Analysis of structural changes (breathing effect) and their correlation with optical switching.

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Last Updated: May 22, 2026

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Main Results:

  • NH(2)-MIL-53(Al) demonstrates solid-state nonlinear optical switching.
  • A significant switching contrast of at least 38 was achieved.
  • The switching is attributed to a conformational change (breathing) leading to a narrow pore configuration.

Conclusions:

  • NH(2)-MIL-53(Al) is the first solid-state material showing NLO switching via a breathing mechanism.
  • Restrained linker mobility in the narrow pore state is key to the observed NLO switching.
  • This MOF presents a promising platform for developing responsive optical materials.