• Anomalous and Colossal Thermal Expansion, Photoluminescence, and Dielectric Properties in Lead Halide-Layered Perovskites With Cyclohexylammonium and Cyclopentylammonium Cations 

      Cuquejo-Cid, Alberto; García-Fernández, Alberto; Popescu, Catalin; Bermúdez-García, Juan Manuel; Señarís-Rodríguez, M. A.; Castro-García, Socorro; Vázquez, Digna; Sánchez-Andújar, Manuel (Elsevier, 2022-06-03)
      [Abstract] A detailed study of lead halide-layered perovskites with general formula A2PbX4 (where A is cyclohexylammonium (CHA) or cyclopentylammonium (CPA) cation and X is Cl− or Br− anion) is presented. Using variable ...
    • Diimidazolium Halobismuthates [Dim]2[Bi2X10] (X = Cl–, Br–, or I–): A New Class of Thermochromic and Photoluminescent Materials 

      García-Fernández, Alberto; Marcos-Cives, Ismael; Platas-Iglesias, Carlos; Castro-García, Socorro; Vázquez, Digna; Fernández, Alberto; Sánchez-Andújar, Manuel (American Chemical Society (ACS), 2018-06-12)
      [Abstract] We present a novel family of polyhalide salts of Bi(III) with the general formula [Dim]2[Bi2X10], where Dim2+ is the diimidazolium cation (C9H14N4)2+ and X is Cl–, Br–, or I–. Single-phase materials are easily ...
    • Narrowing the Tolerance Factor Limits for Hybrid Organic-Inorganic Dicyanamide-Perovskites 

      García Ben, Javier; García-Fernández, Alberto; Dafonte Rodríguez, Pedro; Delgado Ferreiro, Ignacio; Cappel, Ute; Castro-García, Socorro; Sánchez-Andújar, Manuel; Bermúdez-García, Juan Manuel; Señarís-Rodríguez, M. A. (Elsevier, 2022-10-11)
      [Abstract] In this work we focus in setting the limits of the tolerance factor and the size of the A-cations that stabilize the perovskite structure in hybrid dicyanamide compounds [A][Mn(dca)3]. For this purpose, we propose ...
    • Near-Room-Temperature Reversible Giant Barocaloric Effects in [(CH₃)₄N]Mn[N₃]₃ Hybrid Perovskite 

      Salgado-Beceiro, Jorge; Silva, Ariel Nonato Almeida de Abreu; Silva, Rosivaldo Xavier da; García-Fernández, Alberto; Sánchez-Andújar, Manuel; Castro-García, Socorro; Stern-Taulats, Enric; Señarís-Rodríguez, M. A.; Moya, Xavier; Bermúdez-García, Juan Manuel (Royal Society of Chemistry, 2020-09-25)
      [Abstract] We report giant reversible barocaloric effects in [(CH₃)₄N]Mn[N₃]₃ hybrid organic–inorganic perovskite, near its first-order cubic-monoclinic structural phase transition at 𝑇₀ ∼ 305 K. When driving the transition ...
    • Raman Spectroscopy Studies on the Barocaloric Hybrid Perovskite [(CH₃)₄N][Cd(N₃)₃] 

      Silva, Rosivaldo Xavier da; Paschoal, Carlos William de Araujo; Santos, Clenilton; García-Fernández, Alberto; Salgado-Beceiro, Jorge; Señarís-Rodríguez, M. A.; Sánchez-Andújar, Manuel; Silva, Ariel Nonato Almeida de Abreu (MDPI, 2020-10-16)
      [Abstract] Temperature-dependent Raman scattering and differential scanning calorimetry were applied to the study of the hybrid organic-inorganic azide-perovskite [(CH₃)₄N][Cd(N₃)₃], a compound with multiple structural ...