Improvement of Environmental Stability of P3HT-Based Organic Thin-Film Transistors
In the field of electronic devices,there is a growing demand for highly stable organic thin-film transistors(OTFTs).In order to solve the problem that organic materials are susceptible to poor stability due to environmental factors,a new type of OTFT was prepared,and two methods were simulta-neously employed to improve its environmental stability:surface passivation treatment for the transistor,utilizing the high chemical stability of the passivation layer to isolate oxygen and water molecules from the air,and the use of a poly(3-hexylthiophene)(P3HT)blended polymethyl methacrylate(PMMA)active layer to achieve high antioxidant and hydrolysis resistance.The test results show that after 60 d the carrier mobility of the device is only reduced to 87.91％of the original value,and the current switching ratio is reduced to 8 1.90％of the original value,indicating that the environmental stability improvement method proposed in this paper is better than other methods.
万方数据
维普
