Structural analysis of benzothienobenzothiophene-based soluble organic semiconducting crystals grown by liquid crystal solvent
Abstract
In this study, we analyzed organic semiconducting single crystals composed of benzothienobenzothiophene derivatives (2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene, C8-BTBT) grown by nematic-phase liquid crystal (LC) solvent. As a result, we clarified that the crystal b-axis direction of the C8-BTBT single crystals was consistent with the LC alignment direction. By optical evaluation and simulation based on density functional theory, we found that the C8-BTBT single crystals in LC solvent exhibited a novel molecular conformation having alkyl chains oriented toward the b-axis.
- Publication:
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Journal of Crystal Growth
- Pub Date:
- June 2018
- DOI:
- 10.1016/j.jcrysgro.2018.04.020
- Bibcode:
- 2018JCrGr.492...98S
- Keywords:
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- A1. Solvent;
- A1. X-ray diffraction;
- A2. Single crystal growth;
- B1. Organic compounds;
- B2. Semiconducting materials