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Structural effects in poly(3-alkylthiophene)s on the exposition to poor solvent

✍ Scribed by Tullio Caronna; Marinella Catellani; Silvia Luzzati; Stefano Valdo Meille; Valeria Romita

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 267 KB
Volume: 18
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.1997.030181007

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The exposure to pentane vapour of poly(3‐alkylthiophene)s with different alkyl chains produces a modification in the optical properties of the thin films. The treatment induces a red‐shift of the electronic absorption maximum and the appearance of vibronic structure in the UV spectra. We have followed these changes with IR and Raman spectroscopies to monitor the modification of the backbone conjugation, and with X‐ray diffraction to evidence the structural order of the chains.

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