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6. Photo-Voltaic Discotic Liquid Crystals |
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In recent years, many attempts and achievements have been reported based on the controllable orientational and positional order of liquid crystalline material for organic semiconducting devices such as photovoltaic cells, electroluminescent displays, and field effect transistors. Both calamitic and discotic LCs are intensively studied for this purpose. Especially discotic columnar LC exhibits significantly enhanced carrier mobility along the column axis resulting in positionally ordered one-dimensional semiconducting wire. We currently focus on the study of
· Phase structures on the discotic nano-aggregates formed from self-assembled porphyrin liquid crystals · Macroscopic control of the orientational order of discotic columns · Photoconducting properties of discotic LC compounds
by suing micro-focus monodomain synchrotron x-ray diffraction, conventional XRD for aligned samples, polarizing optical microscopy, electrical/electro-optical measurements, etc. |
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Publication Nature inspired light-harvesting liquid crystalline porphyrins for organic photovoltaics, L. Li, S.-W. Kang, J. Harden, Q. Sun, X. Zhou, L. Dai, A. Jakli, S. Kumar, and Q. Li, Liq. Cryst., 35, 233-239 (2008). |
