Artículo
Charge carrier transport in perylene-based and pyrene-based columnar liquid crystals
Alves, Alessandro L.; Bernardino, Simone V.; Stadtlober, Carlos H.; Girotto, Edivandro; Farias, Giliandro; do Nascimento, Rodney M.; Curcio, Sergio Fernando
; Cazati, Thiago; Dotto, Marta E. R.; Eccher, Juliana; Furini, Leonardo N.; Gallardo, Hugo; Bock, Harald; Bechtold, Ivan H.
Fecha de publicación:
11/2023
Editorial:
Beilstein-Institut
Revista:
Beilstein Journal of Organic Chemistry
ISSN:
1860-5397
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Electron and hole transport characteristics were evaluated for perylene-based and pyrene-based compounds using electron-only and hole-only devices. The perylene presented a columnar hexagonal liquid crystal phase at room temperature with strong molecular π-stacking inside the columns. The pyrene crystallizes bellow 166 °C, preserving the close-packed columnar rectangular structure of the mesophase. Photophysical analysis and numerical calculations assisted the interpretation of positive and negative charge carrier mobilities obtained from fitting the space charge limited regime of current vs voltage curves. The pyrene-based material demonstrated an electron mobility two orders of magnitude higher than the perylene one, indicating the potential of this class of materials as electron transporting layer.
Palabras clave:
Charge transport
,
Liquids crystal
,
Organic electronics
,
OLEDs
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Alves, Alessandro L.; Bernardino, Simone V.; Stadtlober, Carlos H.; Girotto, Edivandro; Farias, Giliandro; et al.; Charge carrier transport in perylene-based and pyrene-based columnar liquid crystals; Beilstein-Institut; Beilstein Journal of Organic Chemistry; 19; 11-2023; 1755-1765
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