Issue 16, 2013
From the journal:

RSC Advances

A morphological transition from sheet crystals to r crystals of triethylsilylethynyl anthradithiophene based on thermal annealing

Yajun Su,a   Lidong Zheng,a   Jiangang Liua  and  Yanchun Han*a  

* Corresponding authors

a State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
E-mail: ychan@ciac.jl.cn
Fax: +86-431-85262126
Tel: +86-431-85262175

Abstract

In this work, by using a post-thermal annealing method, a new morphological and structural evolution of triethylsilylethynyl anthradithiophene (TES-ADT) was observed for the first time. At lower annealing temperature (60–120 °C) sheet crystals were obtained, the sizes of which increased with the enhancement of the annealing temperature. A significant morphological transition from sheet crystals to rod-like crystals was observed when the annealing temperature approached the melting point of TES-ADT (about 130 °C). The in-plane lattice parameters were found to be different between the sheet crystals and the rod-like crystals. We thus attribute the mechanism for the morphological transition to the different thermostability of the crystals, which arises from the changeable lattice configuration. The electrical performances of TES-ADT film were improved through thermal annealing.

Graphical abstract: A morphological transition from sheet crystals to r crystals of triethylsilylethynyl anthradithiophene based on thermal annealing

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Article information

DOI
https://doi.org/10.1039/C3RA23275A
Article type
Paper
Submitted
11 Dec 2012
Accepted
01 Feb 2013
First published
01 Feb 2013

RSC Adv., 2013,3, 5529-5538

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A morphological transition from sheet crystals to r crystals of triethylsilylethynyl anthradithiophene based on thermal annealing

Y. Su, L. Zheng, J. Liu and Y. Han, RSC Adv., 2013, 3, 5529 DOI: 10.1039/C3RA23275A

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