n‐Type Building Blocks for Organic Electronics: A Homologous Family of Fluorocarbon‐Substituted Thiophene Oligomers with High Carrier Mobility
- 3 January 2003
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 15 (1), 33-38
- https://doi.org/10.1002/adma.200390003
Abstract
A substantial enhancement of thermal stability, volatility, and electron affinity, switching the semiconducting behavior from p- to n-type, is achieved by fluoroalkyl substitution of thiophene oligomers (see Figure). When this novel series is compared with the fluorine-free analogues, trends in molecular packing, optical absorption, HOMO–LUMO gap, and π–π interactions are found to be strikingly similar.Keywords
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