High‐Mobility Organic Transistors Based on Single‐Crystalline Microribbons of Triisopropylsilylethynyl Pentacene via Solution‐Phase Self‐Assembly

Single-crystalline triisopropylsilylethynyl pentacene (TIPS-PEN) microribbons (see figure) with well-defined facets and unprecedented electrical characteristics, such as a field-effect mobility as high as 1. 4 cm2 V–1 s–1, are fabricated through the self-assembly of individual TIPS-PEN molecules as a result of solvophobic interactions in the solution phase adopting preferential well-ordered intermolecular π–π stacking along the ribbon axis. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2007/c1259ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.