Journal article Open Access

Methylhydrazinium Lead Bromide: Noncentrosymmetric Three-Dimensional Perovskite with Exceptionally Large Framework Distortion and Green Photoluminescence

Ma̧czka, Mirosl̷aw; Ptak, Maciej; Ga̧gor, Anna; Stefańska, Dagmara; Zarȩba, Jan K.; Sieradzki, Adam


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{
  "DOI": "10.1021/acs.chemmater.9b05273", 
  "container_title": "Chemistry of Materials", 
  "title": "Methylhydrazinium Lead Bromide: Noncentrosymmetric Three-Dimensional Perovskite with Exceptionally Large Framework Distortion and Green Photoluminescence", 
  "issued": {
    "date-parts": [
      [
        2020, 
        1, 
        24
      ]
    ]
  }, 
  "abstract": "Three-dimensional (3D) lead halide perovskites have emerged as a promising class of coordination polymers for solar cells, photodetectors, and light-emitting devices. These compounds thus far comprise methylammonium, formamidinium, or cesium as cations. In this work, we introduce a new methylhydrazinium 3D perovskite, CH3NH2NH2PbBr3, that crystallizes in the polar P21 structure at room temperature and undergoes a phase transition to the cubic Pm3\u0305m phase at 418 K. This perovskite exhibits strong second-harmonic generation activity, features switchable dielectric behavior, thermochromism, and two-photon energy upconversion under 800 nm excitation.", 
  "author": [
    {
      "family": "Ma\u0327czka, Mirosl\u0337aw"
    }, 
    {
      "family": "Ptak, Maciej"
    }, 
    {
      "family": "Ga\u0327gor, Anna"
    }, 
    {
      "family": "Stefa\u0144ska, Dagmara"
    }, 
    {
      "family": "Zar\u0229ba, Jan K."
    }, 
    {
      "family": "Sieradzki, Adam"
    }
  ], 
  "page": "1667-1673", 
  "volume": "32", 
  "type": "article-journal", 
  "issue": "4", 
  "id": "5845302"
}
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