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Phase Transitions, Dielectric Response, and Nonlinear Optical Properties of Aziridinium Lead Halide Perovskites.
Maczka, Miroslaw; Ptak, Maciej; Gagor, Anna; Zareba, Jan K; Liang, Xia; Balciu Nas, Sergejus; Semenikhin, Oleksandr A; Kucheriv, Olesia I; Gural'skiy, Il'ya A; Shova, Sergiu; Walsh, Aron; Banys, Ju Ras; Simenas, Mantas.
Afiliación
  • Maczka M; Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wroclaw, Poland.
  • Ptak M; Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wroclaw, Poland.
  • Gagor A; Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wroclaw, Poland.
  • Zareba JK; Institute of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
  • Liang X; Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
  • Balciu Nas S; Faculty of Physics, Vilnius University, LT-10257 Vilnius, Lithuania.
  • Semenikhin OA; Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine.
  • Kucheriv OI; Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine.
  • Gural'skiy IA; Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., Kyiv 01601, Ukraine.
  • Shova S; Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi 700487, Romania.
  • Walsh A; Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
  • Banys JR; Department of Physics, Ewha Womans University, Seoul 03760, Korea.
  • Simenas M; Faculty of Physics, Vilnius University, LT-10257 Vilnius, Lithuania.
Chem Mater ; 35(22): 9725-9738, 2023 Nov 28.
Article en En | MEDLINE | ID: mdl-38047186
Hybrid organic-inorganic lead halide perovskites are promising candidates for next-generation solar cells, light-emitting diodes, photodetectors, and lasers. The structural, dynamic, and phase-transition properties play a key role in the performance of these materials. In this work, we use a multitechnique experimental (thermal, X-ray diffraction, Raman scattering, dielectric, nonlinear optical) and theoretical (machine-learning force field) approach to map the phase diagrams and obtain information on molecular dynamics and mechanism of the structural phase transitions in novel 3D AZRPbX3 perovskites (AZR = aziridinium; X = Cl, Br, I). Our work reveals that all perovskites undergo order-disorder phase transitions at low temperatures, which significantly affect the structural, dielectric, phonon, and nonlinear optical properties of these compounds. The desirable cubic phases of AZRPbX3 remain stable at lower temperatures (132, 145, and 162 K for I, Br, and Cl) compared to the methylammonium and formamidinium analogues. Similar to other 3D-connected hybrid perovskites, the dielectric response reveals a rather high dielectric permittivity, an important feature for defect tolerance. We further show that AZRPbBr3 and AZRPbI3 exhibit strong nonlinear optical absorption. The high two-photon brightness of AZRPbI3 emission stands out among lead perovskites emitting in the near-infrared region.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Mater Año: 2023 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Mater Año: 2023 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Estados Unidos