双层异质结结构的有机发光场效应晶体管的制备和性能研究

发布时间：2018-12-10 13:50

【摘要】：有机发光场效应晶体管(organic light-emitting transistors, OLETs)同时具备有机场效应晶体管(organic field effect transistors, OFETs)的电路调制功能,以及有机发光二极管(organic light-emitting diode, OLEDs)的发光功能,在平板显示、光通讯、固体照明、以及电泵浦有机激光器等领域存在着巨大的应用价值。高性能的OLETs要求器件不仅具有高迁移率,还要求空穴和电子的迁移率达到平衡。异质结结构的OLETs的半导体层由N型材料和P型材料组成,通过对两种材料的调整,可以有效平衡两种载流子的迁移率。本文对双层异质结结构的OLETs进行了研究。首先,为了给双层异质结结构的OLETs的制备作好准备,本文分别制备了基于N型材料P13和基于P型材料DH6T的单层OFET器件,并对它们的性能进行了优化。紧接着,本文制备了基于P13/DH6TPN结的OLETs,当在P13层和DH6T层的厚度分别为28nm和25nm的器件的有机层和源/漏电极间插入一层Mo03以修饰Au电极后,成功提高了空穴的迁移率,制备出了具有平衡的空穴和电子迁移率的OLETs.在对该器件进行测试时,成功观测到了在空气中稳定持续的发光现象。另外,本文也制备并研究了基于P13/Pentacene PN异质结的OLETs,得到的器件性能良好,在器件使用Ag电极时我们在电极附近拍摄到了明亮的绿色光。此外,本文成功地将双层有机绝缘层PMMA交联PVP引入到基于P13/DH6T PN结的OLETs中。该有机绝缘层能够有效提高器件的性能,而且,它的在OLETs中的成功应用也为柔性OLETs的制备奠定了基础。另外,文章还对如何提高该绝缘层的耐高压性能进行了探究。
[Abstract]:The organic light-emitting field effect transistor (organic light-emitting transistors, OLETs) has the circuit modulation function of (organic field effect transistors, OFETs) and the light-emitting diode (organic light-emitting diode, OLEDs) of the organic light-emitting diode (organic light-emitting diode, OLEDs), which is displayed on the flat panel. Optical communication, solid state lighting and electrically pumped organic lasers have great application value. High performance OLETs requires not only high mobility, but also a balance between hole and electron mobility. The semiconductor layer of OLETs with heterojunction structure is composed of N-type material and P-type material. By adjusting the two materials, the mobility of the two carriers can be effectively balanced. In this paper, the OLETs of double layer heterojunction structure is studied. Firstly, in order to prepare the preparation of double-layer heterojunction OLETs, single-layer OFET devices based on N-type P13 and P-type DH6T were fabricated, and their properties were optimized. Then, OLETs, based on P13/DH6TPN junction was prepared. When a layer of Mo03 was inserted between the organic layer of P13 layer and the 28nm layer of DH6T layer and the source / leakage electrode to modify the Au electrode, the hole mobility was improved successfully. OLETs. with equilibrium hole and electron mobility was prepared. The stable and persistent luminescence in the air was observed successfully when the device was tested. In addition, the performance of OLETs, based on P13/Pentacene PN heterojunction is also investigated. When the Ag electrode is used, we get bright green light near the electrode. In addition, PMMA crosslinked PVP with double layer organic insulating layer is successfully introduced into OLETs based on P13/DH6T PN junction. The organic insulation layer can effectively improve the performance of the device, and its successful application in OLETs also lays a foundation for the preparation of flexible OLETs. In addition, how to improve the high-voltage resistance of the insulating layer is also discussed.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN386

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