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Huai-Yuan (Michael) Tseng EE C235

Bridging Dimensions in Organic Electronics: Assembly of Electroactive Polymer Nanodevices from Fluids. Huai-Yuan (Michael) Tseng EE C235. Introduction. Organic / flexible electronics Low cost solution process Spin / drop cast Printing Large area Plastic substrate.

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Huai-Yuan (Michael) Tseng EE C235

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  1. Bridging Dimensions in Organic Electronics: Assembly of Electroactive Polymer Nanodevices from Fluids Huai-Yuan (Michael) Tseng EE C235

  2. Introduction • Organic / flexible electronics • Low cost solution process • Spin / drop cast • Printing • Large area • Plastic substrate • Difficult to scale down to sub-micron feature sizes

  3. Introduction • Top-down technique – Self align printing • However, low device densities, limited by printing feature size Noh, Y. Y.; Zhao, N.; Caironi, M.; Sirringhaus, H. Nat. Nanotechnol. 2007, 2 (12), 784–789. Sele, C. W.; Von Werne, T.; Friend, R. H.; Sirringhaus, H. AdV. Mater. 2005, 17 (8), 997–1001

  4. Motivation • Large area organics/flexible nanoelectronics • High density of nanodevices • Addressing • Nanoarrays and crossbars Only a single wire conduct Beckman, R.; Johnston-Halperin, E.; Luo, Y.; Green, J. E.; Heath, J. R. Science 2005 (310 )p465

  5. Process PEDOT:PSS =Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) PDMS Molding

  6. Results

  7. Nano-transistors On/off is controlled by switching the conductivity of a transistor channel consisting of PEDOT/PSS in contact with a common electrolyte. Doping and de-doping of PEDOT can result in conductivity changes of up to five orders of magnitude

  8. Conclusion • This work has successfully demonstrate • Large area patterning of connected micro/nanolines from the conducting polymer PEDOT, assembled from fluids • Nanotransistors • Large area nanoregistration

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