Solution-phase growth of organic single-crystal arrays

Osamu Goto; Shigetaka Tomiya; Yosuke Murakami; Akira Shinozaki; Akira Toda; Jiro Kasahara; Daisuke Hobara

doi:10.1117/12.943223

15 October 2012 Solution-phase growth of organic single-crystal arrays

Osamu Goto, Shigetaka Tomiya, Yosuke Murakami, Akira Shinozaki, Akira Toda, Jiro Kasahara, Daisuke Hobara

Proceedings Volume 8478, Organic Field-Effect Transistors XI; 84780C (2012) https://doi.org/10.1117/12.943223
Event: SPIE Organic Photonics + Electronics, 2012, San Diego, California, United States

Abstract

We have successfully developed a method for directly forming organic single-crystal thin films at designated locations on a substrate by solution-phase growth. An original micropattern, in which small rectangular regions were connected to a large rectangular region, was designed. The small regions and the large region were used as nucleation control regions (NCRs) and a growth control region (GCR), respectively. The key to success was to vary local supersaturation of a solution droplet by making a large difference in solvent evaporation between a NCR and a GCR. We found that the NCR played a very important role in forming a single nucleus and in investigating the possibility of control of the crystal orientation. By using the developed micropattern and controlling the solvent vapor pressure during growth, we fabricated single-crystal arrays of a stable organic semiconductor, 3,9-bis(4-ethylphenyl)-peri-xanthenoxanthene (C₂Ph-PXX).

Citation Download Citation

Osamu Goto, Shigetaka Tomiya, Yosuke Murakami, Akira Shinozaki, Akira Toda, Jiro Kasahara, and Daisuke Hobara "Solution-phase growth of organic single-crystal arrays", Proc. SPIE 8478, Organic Field-Effect Transistors XI, 84780C (15 October 2012); https://doi.org/10.1117/12.943223

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