Fabrication of Arrays of Organic Polymeric Thin-Film Transistors Using Self-Aligned Microfluidic Channels


  • The authors gratefully acknowledge the Dow Chemical Company for providing samples of F8T2, B. Ong, Y. Wu, and P. Liu of Xerox Research Center of Canada for providing samples of XPT, A. Salleo for useful discussions, S. Ready of PARC for support with the jet-printing system. This work is partially supported by the Advanced Technology Program of the National Institute of Standards and Technology (contract 70NANB0H3033)


Arrays of organic thin-film transistors (TFTs; see Figure) were fabricated using self-aligned microfluidic channels. The self-aligned fluidic channels defined the active area of the TFTs and provided pixel-to-pixel isolation. TFTs made with a regioregular poly(thiophene) had field effect mobilities of 0.05 cm2 V–1 s–1 and on/off current ratios of 108.