Silylethyne‐Substituted Acenes and Heteroacenes

Synthesis and characterization of copper, polyimide and TIPS-pentacene layers for the development of a solution processed fibrous transistor

“…10,14,15 Due to its molecular structure, as illustrated in Figure 2, TIPS-pentacene molecules will form cofacial 2D π -stacked structure with a π -face separation of 3.43 Å and π -overlap of 7.73Å 2 . 13,16 This structure leads to relatively high field effect mobilities, generally in the order of 10 -1 cm 2 /V.s with the highest reported field effect mobility for TIPS-pentacene drop casted from a 2w% toluene solution of 1.8 cm 2 /V.s. 14,15 Boiling point and aromaticity are important properties of the solvent for solution processing.…”

“…The substituents take advantage of both steric and π -stacking interactions to induce these chromophores to self-assemble into arrays with strong intermolecular electronic coupling which yields uniform fields with significant long-range crystalline order. 13 Because of its versatile solution processability and high charge carrier mobility, 6,13-bis(Triisopropylsilylethynyl)pentacene (TIPS-pentacene) has been the most intensively investigated compound of all examined soluble small organic semiconductors. 10,14,15 Due to its molecular structure, as illustrated in Figure 2, TIPS-pentacene molecules will form cofacial 2D π -stacked structure with a π -face separation of 3.43 Å and π -overlap of 7.73Å 2 .…”