Artículo
Elucidating the Methylammonium (MA) Conformation in MAPbBr3 Perovskite with Application in Solar Cells
Lopez, Carlos Alberto
; Martínez Huerta, María Victoria; Alvarez Galván, María Consuelo; Kayser, Paula; Gant, Patricia; Castellanos Gomez, Andres; Fernández Díaz, María T.; Fauth, Francois; Alonso, José A.
Fecha de publicación:
11/2017
Editorial:
American Chemical Society
Revista:
Inorganic Chemistry
ISSN:
0020-1669
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Hybrid organic-inorganic perovskites, MAPbX3 (X = halogen), containing methylammonium (MA: CH3-NH3+) in the large voids conformed by the PbX6 octahedral network, are the active absorption materials in the new generation of solar cells. CH3NH3PbBr3 is a promising member with a large band gap that gives rise to a high open circuit voltage. A deep knowledge of the crystal structure and, in particular, the MA conformation inside the perovskite cage across the phase transitions undergone below room temperature, seems essential to establish structure-property correlations that may drive to further improvements. The presence of protons requires the use of neutrons, combined with synchrotron XRD data that help to depict subtle symmetry changes undergone upon cooling. We present a consistent picture of the structural features of this fascinating material, in complement with photocurrent measurements from a photodetector device, demonstrating the potential of MAPbBr3 in optoelectronics.
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Articulos(INTEQUI)
Articulos de INST. DE INVEST. EN TECNOLOGIA QUIMICA
Articulos de INST. DE INVEST. EN TECNOLOGIA QUIMICA
Citación
Lopez, Carlos Alberto; Martínez Huerta, María Victoria; Alvarez Galván, María Consuelo; Kayser, Paula; Gant, Patricia; et al.; Elucidating the Methylammonium (MA) Conformation in MAPbBr3 Perovskite with Application in Solar Cells; American Chemical Society; Inorganic Chemistry; 56; 22; 11-2017; 14214-14219
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