Semiconducting Polymer Composite Based Bipolar Transistors

Semiconducting Polymer Composite Based Bipolar Transistors 

Claudia Piliego, Krisztina Szendrei, and Maria Antonietta Loi 

The performance of organic semiconductor field-effect transistor has been improved tremendously in the last few years, focusing on increasing the environmental stability and charge carrier mobility of p- and n-type polymers and small molecules. In particular, for polymers the record mobility values reported till date are approaching 2cm (V s ) for p-type polymers [7] and Icm (V s ) for n-type polymers [8]. The p-type conduction has been till last few years much superior than n-type one, due to the oxygen and water sensitivity of many organic anions [9]. Only recentiy, n-type polymers with comparable performance have been reported. 

Semiconducting Polymer Composites Principles, Morpholo es, Properties and Applications, First Edition. 

This chapter concentrates on organic bipolar transistors, including details about the basic operation principles, device configurations, and processing methods, and describing the various strategies that have been applied to achieve ambipolar transport. Touching upon small molecule-based FETs and the hybrid approach, the main focus will be on polymer-based bipolar transistors since they can provide one of the ultimate solutions for simple, low-cost fabrication of flexible bipolar FETs. 

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Semiconducting Polymer Composite Based Bipolar Transistors... 

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