Bulk Heterojunction Bipolar FETs

In comparison to single-component films, bipolar semiconducting blends are much more challenging. The necessity to have percolation networks for both electrons and holes, each one conducted by one component of the blend, imposes strict requirements for the supra-molecular organization of the two materials. On one side an extended intermixing of the two semiconductors at the molecular level will 

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Another example of all-polymer bulk heterojunction bipolar FETs was demonstrated recently by Szendrei et al. [15]. The limited number of polymer blend bipolar FETs is due to the scarcity of high-performing n-type polymers. The recent... 

X 10 cm (V s ) at Vds= 30 V. These mobilities are the highest balanced mobilities reported so far for solution processed all polymer bulk heterojunction bipolar FETs. The balanced FET mobilities indicate the presence of sufficient percolation pathways for both charge carriers in these polymer blends. 

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