American Institute of Physics, Applied Physics Letters, 13(90), p. 132106
DOI: 10.1063/1.2717087
Full text: Download
The authors report the fabrication of one-dimensional crystal arrays of triisopropylsilylethynyl pentacene (TIPS PEN) via simple drop casting on a tilted substrate. By pinning a solution droplet on the tilted substrate, an array of ribbon-shaped crystals aligned in the tilted direction was formed on the substrate. X-ray diffraction analysis revealed that these crystals were oriented in the crystal growth direction. A thin film transistor based on such an array of TIPS PEN crystals was found to have a high field-effect mobility of 0.3 cm 2/ V s , which results from the directed organization of the π -conjugated molecules.