Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/177911
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Direct calorimetric observation of the rigid amorphous fraction in a semiconducting polymer |
Autor: | Martín, Jaime CSIC ORCID; Stingelin, Natalie; Cangialosi, Daniele CSIC ORCID | Fecha de publicación: | 2018 | Editor: | American Chemical Society | Citación: | Journal of Physical Chemistry Letters 9(5): 990-995 (2018) | Resumen: | The performance of polymeric semiconductors is profoundly affected by the thermodynamic state of its crystalline and amorphous fractions and how they affect the optoelectronic properties. While intense research has been conducted on the crystalline features, fundamental understanding of the amorphous fraction(s) is still lacking. Here, we employ fast scanning calorimetry to provide insights on the glass transition of the archetypal conjugated polymer poly(3-hexylthiophene) (P3HT). According to the conceptual definition of the glass transition temperature (T), that is, the temperature marking the crossover from the melt in metastable equilibrium to the nonequilibrium glass, an enthalpy relaxation should be observed by calorimetry when the glass is aged below T. Thus, we are able to identify the enthalpy relaxations of mobile and rigid amorphous fractions (MAF and RAF, respectively) of P3HT and to determine their respective T. Our work moreover highlights that the RAF should be included in structural models when establishing structure/property interrelationships of polymer semiconductors. | URI: | http://hdl.handle.net/10261/177911 | DOI: | 10.1021/acs.jpclett.7b03110 | Identificadores: | doi: 10.1021/acs.jpclett.7b03110 e-issn: 1948-7185 |
Aparece en las colecciones: | (CFM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
60
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
59
checked on 29-feb-2024
Page view(s)
251
checked on 24-abr-2024
Download(s)
30
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.