Patent ID: 7005674
Filing Date: 2006-02-28
Classification: H01L

Abstract:
1. An organic thin film transistor, comprising a gate electrode, a gate insulating film, an organic active layer and a source/drain electrode, or a gate electrode, a gate insulating film, a source/drain electrode and an organic active layer, sequentially located on a substrate, wherein the gate insulating film is a multi-layered insulator comprising a first layer of a high k material and a second layer of an insulating organic polymer compatible with the organic active layer, the second layer being positioned directly under the organic active layer, wherein the insulating organic polymer of the second insulating layer is selected from the group consisting of polyvinylphenol, polyacrylate, polyvinylalcohol, and a polymer represented by the following Formula 1: wherein, R is represented by the following Formula 2: wherein R R R k is an integer of 0 to 3 and I is an integer of 1 to 5, provided that each of R m is a real number of 0.3 to 0.7, and n is a real number of 0.3 to 0.7, provided that the sum of m and n becomes 1; x is a real number of 0.3 to 0.7, and y is a real number of 0.3 to 0.7, provided that the sum of x and y becomes 1; and i is a real number of 0 to 1 and j is a real number of 0 to 1, provided that the sum of i and j becomes 1.