Liquid Crystalline Blends Toward Semiconductors

A well-studied binary system of discotic liquid crystal toward high carrier mobility systems is a blend of two types of triphenylene-based compounds (Fig. 8.5). These two compounds were mixed in expectation to give a new semiconducting system that exhibits enhancement of charge transport efficiency. The concept is based on Complimentary Polytopic Interaction (CPI) [16-18]. 

The binary systems composed of p- and n-type of semiconductors is just a content of the active layer in organic thin film solar cells and it could work as a bulk heterojunction if those form carrier transport path for hole and electron with phase separation and the charges are generated at the interface of p- and n-types of semiconductor domains. However, when both p- and n-types of molecules are 

These examples of study on binary mixtures with discotic systems show an importance of solubility and molecular orders in mesophase for the resultant structure of mesogenic binary systems. 

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