Vertically grown nanowire crystals of dibenzotetrathienocoronene (DBTTC) on large-area graphene

B. Kim; C.-Y. Chiu; S. J. Kang; K. S. Kim; G.-H. Lee; Z. Chen; S. Ahn; K. G. Yager; J. Ciston; C. Nuckolls; T. Schiros

doi:10.1039/C6RA04742D

Vertically grown nanowire crystals of dibenzotetrathienocoronene (DBTTC) on large-area graphene†

B. Kim,‡^a C.-Y. Chiu,‡^b S. J. Kang,^c K. S. Kim,^d G.-H. Lee,^e Z. Chen,^f S. Ahn,^g K. G. Yager,

^h J. Ciston,ⁱ C. Nuckolls^j and T. Schiros*^kl

Author affiliations

* Corresponding authors

^a Department of Chemistry, New Jersey City University, Jersey City, NJ 07305, USA

^b PPG Industries Inc., Monroeville Chemicals Center, Monroeville, PA 15146, USA

^c School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 608-798, South Korea

^d Department of Physics and Graphene Research Institute, Sejong University, Seoul 05006, South Korea

^e Department of Material Science and Engineering, Yonsei University, Seoul 03722, South Korea

^f Department of Chemistry, Emory University, Atlanta, GA 30322, USA

^g Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Wanju 565-905, Korea

^h Center for Functional Materials, Brookhaven National Laboratory, Upton, NY 11973, USA

ⁱ Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

^j Department of Chemistry, Columbia University, New York, NY 10027, USA

^k Materials Research Science and Engineering (MRSEC), Columbia University, New York, NY 10027, USA
E-mail: ts2526@columbia.edu

^l Fashion Institute of Technology, State University of New York, New York, NY 10001, USA

Abstract

We demonstrate controlled growth of vertical organic crystal nanowires on single layer graphene. Using Scanning Electron Microscopy (SEM), high-resolution transmission electron microscopy (TEM), and Grazing Incidence X-ray Diffraction (GIXD), we probe the microstructure and morphology of dibenzotetrathienocoronene (DBTTC) nanowires epitaxially grown on graphene. The investigation is performed at both the ensemble and single nanowire level, and as a function of growth parameters, providing insight of and control over the formation mechanism. The size, density and height of the nanowires can be tuned via growth conditions, opening new avenues for tailoring three-dimensional (3-D) nanostructured architectures for organic electronics with improved functional performance.

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Vertically grown nanowire crystals of dibenzotetrathienocoronene (DBTTC) on large-area graphene†

Abstract

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Vertically grown nanowire crystals of dibenzotetrathienocoronene (DBTTC) on large-area graphene

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