Materials 2010, 3(3), 1904-1912; doi:10.3390/ma3031904
Communication

Charge-Transfer Controlled Crystallization of a Model Oligomer for Donor-Acceptor-Polythiophenes

Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
* Author to whom correspondence should be addressed.
Received: 25 January 2010; in revised form: 4 March 2010 / Accepted: 16 March 2010 / Published: 17 March 2010
(This article belongs to the Special Issue Conjugated Oligomers)
PDF Full-text Download PDF Full-Text [306 KB, uploaded 17 March 2010 08:38 CET]
Abstract: A model donor-acceptor oligomer consisting of benzodithiophene-diketone and thiophene has been investigated with regard to its molecular packing and opto-electronic properties. The crystal structure suggests that the packing is dominated by charge-transfer interactions between the electron-rich part of the molecule and the electron-poor part. A series of observations corroborate this assumption, among them are a charge-transfer band in the film absorption spectra and exceptionally low π-π distances. A detailed analysis of the energetic levels of the present system reveals that only the HOMO level of the acceptor is shifted by conjugation to the donor. The results can contribute to the development of improved materials for organic electronics.
Keywords: conjugated oligomer; donor-acceptor; charge-transfer; crystal engineering; molecular packing; energy levels

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Rieger, R.; Enkelmann, V.; Müllen, K. Charge-Transfer Controlled Crystallization of a Model Oligomer for Donor-Acceptor-Polythiophenes. Materials 2010, 3, 1904-1912.

AMA Style

Rieger R, Enkelmann V, Müllen K. Charge-Transfer Controlled Crystallization of a Model Oligomer for Donor-Acceptor-Polythiophenes. Materials. 2010; 3(3):1904-1912.

Chicago/Turabian Style

Rieger, Ralph; Enkelmann, Volker; Müllen, Klaus. 2010. "Charge-Transfer Controlled Crystallization of a Model Oligomer for Donor-Acceptor-Polythiophenes." Materials 3, no. 3: 1904-1912.

Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert