基于并五苯和P13的双极型有机场效应发光晶体管的研究

发布时间：2018-01-04 03:26

本文关键词：基于并五苯和P13的双极型有机场效应发光晶体管的研究　出处：《南京邮电大学》2016年硕士论文　论文类型：学位论文

【摘要】：有机场效应发光晶体管(OLETs)不仅具备了传统有机场效应晶体管(OFET)制备工艺简单、机械柔韧性好等优点,还同时背了有机发光二极管(OLED)的厚度薄、发光亮度高、色彩好的优点。基于以上优点,OLETs不仅可以取代传统的采用薄膜晶体管作为驱动的液晶显示,在全有机大面积柔性有源矩阵显示中得到应用,还在实现电激发的有机激光发面具有潜在的应用。本论文介绍了有机场效应发光晶体管的发展历史、各种分类以及它的工作原理,并以pentacene和P13两种基本材料为基础,先是设计出了具备双极传输的有机场效应晶体管,进而在此基础上进行优化改进,最终实现了有机场效应发光晶体管的制备。主要内容及成果如下:(1)制备双极性有机场效应晶体管。以p型材料pentacene和n型材料P13为基础,采用双层异质结和体异质结结构分别制备了器件。双层异质结结构的器件具备双极性,对电子和空穴都良好的传输能力;体异质结结构器件制备中,虽然我们尝试用各种比例混掺两种材料,但都没能实现器件的双极性传输。(2)制备有机场效应发光晶体管。以双层异质结型有机场效应晶体管为基础,我们通过加入电极修饰层MoO_3,提高的器件的空穴迁移率;通过将电极换成有利于电极电子注入的银电极,绝缘层修饰层采用单分子层的OTS,提高了器件的电子迁移率,最终使得器件能够发光。(3)研究了电极对于器件发光颜色的影响。通过进一步改进器件的结构,在原本的器件结构基础上,我们发现,改变电极为Au电极,并且电极采用LiF修饰,器件能够发出红光;改变电极为Cu,电极仍然采用MoO_3修饰,器件能够发出黄光。
[Abstract]:OLETs) not only has the advantages of simple preparation process, good mechanical flexibility and so on, but also has the advantages of traditional OFETs. At the same time, it also has the advantages of thin thickness, high luminous brightness and good color, based on the above advantages. OLETs can not only replace the traditional liquid crystal display driven by thin film transistors, but also be used in all organic flexible active matrix display. There are potential applications in the realization of electrically excited organic laser. In this paper, the development history, classification and working principle of the field effect luminescent transistors are introduced. Based on two basic materials, pentacene and P13, the field effect transistor with bipolar transmission is designed and optimized. Finally, the fabrication of light-emitting transistors with airfield effect is realized. The main contents and results are as follows: 1). Bipolar field-effect transistors were fabricated on the basis of p-type pentacene and n-type P13. The double-layer heterostructure and the bulk heterojunction structure are used to fabricate the devices respectively. The devices with double-layer heterojunction structure have bipolar properties and good transmission ability to both electrons and holes. In the fabrication of bulk heterojunction devices, we try to mix two kinds of materials with various proportions. But none of them can realize the bipolar transmission of the device. We can not realize the bipolar transmission of the device. We can not realize the bipolar transmission of the device. We have prepared the field effect transistor. Based on the double-layer heterojunction type airfield effect transistor, we have added the electrode modified layer MoO_3. Improved hole mobility of the device; By replacing the electrode with silver electrode which is favorable to the electrode electron implantation, the insulator layer is modified by single molecular layer OTS, which improves the electron mobility of the device. Finally, the effect of the electrode on the luminescent color of the device is studied. By further improving the structure of the device, we find out that based on the original structure of the device. When the electrode is changed to au electrode, and the electrode is modified by LiF, the device can emit red light. When the electrode is changed to Cu, the electrode is still modified by MoO_3, and the device can emit yellow light.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN386

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