Crystal structure and optical properties of n-pyrrole end-capped thiophene/phenyl co-oligomer: Strong h-type excitonic coupling and emission self-waveguiding

Silvia Tavazzi, Luciano Miozzo, Leonardo Silvestri, Stefano Mora, Peter Spearman, Massimo Moret, Silvia Rizzato, Daniele Braga, Abdou Karim Diagne Diaw, Diariatou Gningue-Sall, Jean Jacques Aaron, Abderrahim Yassar

Research output: Contribution to journalArticle

Abstract

In view of their exploitation in working devices, mainly for their emission properties, the interest in crystals of thiophene/phenylene co-oligomers has recently increased. Here, we describe the strategies for the organic synthesis and crystal growth of a novel oligothiophene-based co-oligomer (thiophene/phenyl co-oligomer end-capped with pyrrole) designed to explore the effect of an electron-rich aromatic ring, such as pyrrole, to end-cap oligothiophenes. The growth by the melted material is also discussed and suggested for implementation in real devices. The UV-visible optical characterization is provided, and the results (absorption and emission excitonic transitions, H-type aggregation, self-waveguiding of the emitted light) are interpreted on the basis of the crystallographic data in the regime of strong intermolecular coupling.

Original languageEnglish
Pages (from-to)2342-2349
Number of pages8
JournalCrystal Growth and Design
Volume10
Issue number5
DOIs
Publication statusPublished - May 5 2010

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Thiophenes
Pyrroles
Thiophene
pyrroles
thiophenes
oligomers
Oligomers
Optical properties
Crystal structure
optical properties
crystal structure
exploitation
Crystallization
Crystal growth
caps
crystal growth
Agglomeration
Crystals
Electrons
rings

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Crystal structure and optical properties of n-pyrrole end-capped thiophene/phenyl co-oligomer : Strong h-type excitonic coupling and emission self-waveguiding. / Tavazzi, Silvia; Miozzo, Luciano; Silvestri, Leonardo; Mora, Stefano; Spearman, Peter; Moret, Massimo; Rizzato, Silvia; Braga, Daniele; Diagne Diaw, Abdou Karim; Gningue-Sall, Diariatou; Aaron, Jean Jacques; Yassar, Abderrahim.

In: Crystal Growth and Design, Vol. 10, No. 5, 05.05.2010, p. 2342-2349.

Research output: Contribution to journalArticle

Tavazzi, S, Miozzo, L, Silvestri, L, Mora, S, Spearman, P, Moret, M, Rizzato, S, Braga, D, Diagne Diaw, AK, Gningue-Sall, D, Aaron, JJ & Yassar, A 2010, 'Crystal structure and optical properties of n-pyrrole end-capped thiophene/phenyl co-oligomer: Strong h-type excitonic coupling and emission self-waveguiding', Crystal Growth and Design, vol. 10, no. 5, pp. 2342-2349. https://doi.org/10.1021/cg100113h
Tavazzi, Silvia ; Miozzo, Luciano ; Silvestri, Leonardo ; Mora, Stefano ; Spearman, Peter ; Moret, Massimo ; Rizzato, Silvia ; Braga, Daniele ; Diagne Diaw, Abdou Karim ; Gningue-Sall, Diariatou ; Aaron, Jean Jacques ; Yassar, Abderrahim. / Crystal structure and optical properties of n-pyrrole end-capped thiophene/phenyl co-oligomer : Strong h-type excitonic coupling and emission self-waveguiding. In: Crystal Growth and Design. 2010 ; Vol. 10, No. 5. pp. 2342-2349.
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