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Ambipolar organic thin-film field-effect transistor and making method

  • US 7,507,613 B2
  • Filed: 08/01/2007
  • Issued: 03/24/2009
  • Est. Priority Date: 03/25/2005
  • Status: Expired due to Fees
First Claim
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1. A method for preparing an ambipolar organic thin-film field-effect transistor, comprising the steps of:

  • applying a solution of an organic solvent-soluble organic compound in an organic solvent onto a gate electrode,drying the applied solution to form an insulator layer,laying a semiconductor layer on the insulator layer, andconducting polling by applying a voltage which is not less than the coercive electric field and not more than the withstand voltage of the organic compound of the insulator layer between source and gate electrodes thereby inverting polarity from p-type transistor characteristics to n-type transistor characteristics.

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