Kim, Do Hwan Lim, Jung Ah Cha, Wonsuk Lee, Jung Heon Kim, Hyunjung Cho, Jeong Ho 2024-01-20T09:00:36Z 2024-01-20T09:00:36Z 2021-09-02 2014-10 1566-1199 https://pubs.kist.re.kr/handle/201004/126318 We fabricated well-defined 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-PEN) crystal arrays for use in electronic applications via a simple but effective method, the confined evaporative capillary flow (CEC) method. This has been accomplished by systematically controlling the contact line pinning at the edge of glass stylus and the outward hydrodynamic flow within the drying droplet with various processing solvents and surface properties of the substrate during solidification. We found that after CEC coating of TIPS-PEN solution dissolved into toluene onto SiO2 surface, ribbon-shaped TIPS-PEN crystals were well developed with a width of 20-100 mu m and length of 300 mu m - 2 mm, which is presumably owing to optimized capillary evaporation. Specifically, TIPS-PEN crystals present highly preferred crystal orientation along the (l 0 0) axis, which can lead to efficient charge transport in a lateral direction. Thus, TIPS-PEN field-effect transistors (FETs) exhibited a good hole mobility of 0.72 cm(2)/Vs. (C) 2014 Elsevier B.V. All rights reserved. English ELSEVIER ORGANIZATION PENTACENE TRANSPORT ELECTRON Directed self-assembly of organic semiconductors via confined evaporative capillary flows for use in organic field-effect transistors Article 10.1016/j.orgel.2014.06.022 1 ORGANIC ELECTRONICS, v.15, no.10, pp.2322 - 2327 ORGANIC ELECTRONICS 15 10 2322 2327 scie scopus 000341290000021 2-s2.0-84904974392 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article ORGANIZATION PENTACENE TRANSPORT ELECTRON Self-assembly Confined evaporative capillary flow Organic semiconductor Organic field-effect transistor