Study On Ambipolar Organic Light Field Effect Transistors Based On Pentacene And P13

Organic light-emitting field-effect transistor（OLETs） not only has the traditional organic field effect transistor（OFET） preparation process is simple, and good mechanical flexibility, while also backing the organic light emitting diode（OLED） of thin, high brightness, good color The advantages. Based on the above advantages, OLETs can not only replace conven tional thin-film transistor liquid crystal display as a drive, to be applied in the whole large area flexible organic active matrix display, also electrically excited organic baking laser has potential application.This paper describes the history of the development of organic light-emitting field-effec t transistor, a variety of classification and how it works, and pentacene and P13 based on t wo basic materials, first designed the transmission with bipolar organic field effect transistor, and thus in based on the improved optimization, and ultimately the preparation of organicl ight-emitting field-effect transistor. The main contents and results are as follows:（1） Preparation of a bipolar organic field effect transistor. P-type and n-type material pent acene material P13, based on the use of double heterojunction and bulk heterojunctionstruct ures were fabricated devices. Double heterojunction structure includes a bipolar device,electr ons and holes are good for transmission capacity; prepared bulk heterojunction structure of t he device, although we try to use various ratios of Mixed two materials, but failed to achie ve bipolar transmission devices.（2） Preparation of organic light emitting field effect transistor. In the double hetero juncti on type field effect transistors based on organic, we added MoO₃ as modified electrode lay er, to improve the hole mobility of the device; silver electrode by injection of electrons int o the electrode beneficial, finishing layer a monolayer of OTS, improve the electron mobilit y of the device, and ultimately allow the devices to emit light.（3） The electrode device for light color impact. By improving the structure of the device,the device structure on the basis of the original, we have discovered that varying electrode is Au electrode, and an electrode using Li F modified device capable of emitting red light; t he electrode is changed to Cu, MoO₃ still use modified electrodes, the device can send yell ow light.