Crystallization and Organic Field-Effect Transistor Performance of a Hydrogen-Bonded Quaterthiophene

Gebers J, Oezen B, Hartmann L, Schaer M, Suarez S, Bugnon P, Scopelliti R, Steinrück HG, Konovalov O, Magerl A, Brinkmann M, Petraglia R, De Silva P, Corminboeuf C, Frauenrath H (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Chemistry - A European Journal Wiley

DOI: 10.1002/chem.201904562

Abstract

Crystalline thin films of pi-conjugated molecules are relevant as the active layers in organic electronic devices. Therefore, materials with enhanced control over the supramolecular arrangement, crystallinity, and thin-film morphology are desirable. Herein, it is reported that hydrogen-bonded substituents serve as additional structure-directing elements that positively affect crystallization, thin-film morphology, and device performance of p-type organic semiconductors. It is observed that a quaterthiophene diacetamide exhibits a denser packing than that of other quaterthiophenes in the single-crystal structure and, as a result, displays enhanced intermolecular electronic interactions. This feature was preserved in crystalline thin films that exhibited a layer-by-layer morphology, with large domain sizes and high internal order. As a result, organic field-effect transistors of these polycrystalline thin films showed mobilities in the range of the best mobility values reported for single-crystalline quaterthiophenes. The use of hydrogen-bonded groups may, thus, provide an avenue for organic semiconducting materials with improved morphology and performance.

Authors with CRIS profile

Hans-Georg Steinrück Lehrstuhl für Kristallographie und Strukturphysik Andreas Magerl Lehrstuhl für Kristallographie und Strukturphysik

Involved external institutions

École Polytechnique Fédérale de Lausanne (EPFL) CH Switzerland (CH) European Synchrotron Radiation Facility (ESRF) FR France (FR) Université de Strasbourg (UDS) FR France (FR)

How to cite

APA:

Gebers, J., Oezen, B., Hartmann, L., Schaer, M., Suarez, S., Bugnon, P.,... Frauenrath, H. (2020). Crystallization and Organic Field-Effect Transistor Performance of a Hydrogen-Bonded Quaterthiophene. Chemistry - A European Journal. https://dx.doi.org/10.1002/chem.201904562

MLA:

Gebers, Jan, et al. "Crystallization and Organic Field-Effect Transistor Performance of a Hydrogen-Bonded Quaterthiophene." Chemistry - A European Journal (2020).

BibTeX: Download