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AIST TODAYNo.23 Winter 2007 [ PDF:4.3MB ]


Development of a Liquid Crystalline Organic Semiconductor Forming a Helical Structure


Cholesteric liquid crystals have been drawing much attention because of their helical structure, which can be applied to circularly polarized emission and optically pumped laser. However, conventional cholesteric liquid crystals are insulators and cannot be applied to electrically pumped devices. We synthesized cholesteric liquid crystals exhibiting semiconductive carrier transport properties. A dimeric cholesteric semiconductor was also synthesized and circularly polarized luminescence was observed.

Figure
Figure : Temperature dependence of charge transfer mobility

Relational Information

AIST TODAY Vol.6, No.10 p.26-27 (2006)



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