有機电致发光器件OLED的结构和发光机理毕业设计书.docVIP

摘要 OLED 具有全固态、主动发光、高对比度、超薄、低功耗、无视角限制、响应速度快、低电压直流驱动、工作温度范围宽、易于实现柔性显示和3D 显示等诸多优点，将成为未来20 年最具“钱景”的新型显示技术。同时，由于OLED 具有可大面积成膜、功耗低以及其它优良特性，因此还是一种理想的平面光源，在未来的节能环保型照明领域也具有广泛的应用前景。(OLED) 的结构和发光机理。 典型的传统OLED是生长在透明的阳极例如ITO玻璃上的，发射出来的光是由最底层衬底透出，这使得它与其他电子元件如硅基显示驱动器的集成变得非常复杂。因此，理想的做法是研发一种OLED，其光的发射由器件顶部的透明电极透出。重点介绍一种具有阴极作为底层接触层，阳极ITO薄膜作为顶部电极的表面发射型或者说有机“反转”的LED(OILED)。介绍了该器件的制备工艺，对该OILED的I一V特性及EL谱进行了测试，发现与传统的OLED相类似，而工作电压有所升高，效率一定程度上降低。为了进一步改善器件性能，我们对器件增加了保护层(PL)，研究了PL对OILED器件性能的影响。最后概述了器件的技术进展和应用前景, 并展望了未来OLED 发展的方向。 关键词： 有机电致发光器件，有机反转电致发光器件，发光机理，保护层（PL）,阳极ITO薄膜 Abstract OLED has a solid state, self-luminous, high contrast, ultra-thin, low power consumption, viewing angle, fast response, low-voltage DC drive, the operating temperature range, easy to implement many of the advantages of flexible displays and 3D displays will become the future20 years of the most money scene of the new display technology. Also, because OLED has a large-area film, low power consumption, and other fine features, so an ideal plane light source, also has broad application prospects in the future of energy saving lighting in the area. In this paper, the systematic introduction of OLED development background, history of the development, preparation and application, the structure of the organic electroluminescent devices (OLED) and the luminescence mechanism. Typical traditional OLED is growth in transparent anode ITO glass, for example, the light is emitted by bottom gives fully substrate, this makes it and other electronic components such as that the integration of the silica based drive become very complex. Therefore, the ideal way is developing a OLED, its light emission from the top of the device gives fully transparent electrodes. Focuses on a cathode as the bottom contact layer, the anode of ITO films as the top electrode surface emission or organic LED of the reverse (OILED). Of the device preparation process, the OILED I-V characteristics and EL spectra of the test, found that similar to the con