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@ARTICLE{Peng:622465,
      author       = {Peng, Jun and Brandt, Julia and Pfeiffer, Maurice and G.
                      Maragno, Laura and Krekeler, Tobias and T. James, Nithin and
                      Henf, Julius and Heyn, Christian and Ritter, Martin and
                      Eich, Manfred and Petrov, Alexander Yu. and P. Furlan,
                      Kaline and Blick, Robert and Zierold, Robert},
      title        = {{S}witchable 3{D} {P}hotonic {C}rystals {B}ased on the
                      {I}nsulator-to-{M}etal {T}ransition in {VO}$_2$},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {16},
      number       = {49},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {PUBDB-2025-00328},
      pages        = {67106-67115},
      year         = {2024},
      abstract     = {Photonic crystals (PhCs) are optical structures
                      characterized by the spatial modulation of the dielectric
                      function, which results in the formation of a photonic band
                      gap (PBG) in the frequency spectrum. This PBG blocks the
                      propagation of light, enabling filtering, confinement, and
                      manipulation of light. Most of the research in this field
                      has concentrated on static PhCs, which have fixed structural
                      and material parameters, leading to a constant PBG. However,
                      the growing demand for adaptive photonic devices has led to
                      an increased interest in switchable PhCs, where the PBG can
                      be reversibly activated or shifted. Vanadium dioxide (VO2)
                      is particularly notable for its near-room-temperature
                      insulator-to-metal transition (IMT), which is accompanied by
                      significant changes in its optical properties. Here, we
                      demonstrate a fabrication strategy for switchable
                      three-dimensional (3D) PhCs, involving sacrificial templates
                      and a VO2 atomic layer deposition (ALD) process in
                      combination with an accurately controlled annealing
                      procedure. The resulting VO2 inverse opal (IO) PhC achieves
                      substantial control over PBG in the near-infrared (NIR)
                      region. Specifically, the synthesized VO$_2$ IO PhC exhibits
                      PBGs near 1.49 and 1.03 μm in the dielectric and metallic
                      states of the VO$_2$ material, respectively, which can be
                      reversibly switched by adjusting the external temperature.
                      Furthermore, a temperature-dependent switch from a
                      narrow-band NIR reflector to a broad-band absorber is
                      revealed. This work highlights the potential of integrating
                      VO$_2$ into 3D templates in the development of switchable
                      photonics with complex 3D structures, offering a promising
                      avenue for the advancement of photonic devices with
                      adaptable functionalities.},
      cin          = {FS-PS},
      ddc          = {600},
      cid          = {I:(DE-H253)FS-PS-20131107},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / DFG project G:(GEPRIS)192346071 - SFB
                      986: Maßgeschneiderte Multiskalige Materialsysteme - M3
                      (192346071)},
      pid          = {G:(DE-HGF)POF4-632 / G:(GEPRIS)192346071},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {39622080},
      UT           = {WOS:001368389400001},
      doi          = {10.1021/acsami.4c13789},
      url          = {https://bib-pubdb1.desy.de/record/622465},
}