基于有机激光增益介质ASE特性的材料改性、界面修饰及溶液传感应用

发布时间：2018-06-22 18:48

本文选题：有机激光 + 自发辐射放大　；参考：《南京邮电大学》2017年硕士论文

【摘要】：近年来,有机激光器件因其具有可调节相干源范围宽、器件结构紧凑、易于制作、价格低廉等优点逐渐受到科研工作者的重视。经过科研人员的不懈努力,相关研究工作取得了巨大的进展,成功的实现了光泵浦固体有机激光。不过遗憾的是,如何实现电泵浦有机半导体激光一直是有机激光领域亟待解决的难题。本论文从激光的基本原理出发,阐述了有机半导体激光的历史与发展,并从有机半导体激光材料、器件结构和应用等方面进行归纳和总结,探讨有机半导体激光研究现状和发展瓶颈,同时充分介绍了有机半导体激光实际应用前景。本论文主要从有机激光材料改性、界面修饰和传感应用三方面进行一些有意义的探索,为后续研究提供参考和借鉴。(1)创新性的使用石蜡油控制poly(9,9-dioctylfluorene)(PFO聚(9,9-二正辛基芴基))薄膜中β相组分优化发光特性。通过向PFO甲苯溶液中添加微量的石蜡油可控的调节PFO薄膜中β相组分,对比不同β相组分下PFO薄膜的发光性能,评估材料改性后在有机激光器件和有机发光二极管中的应用前景。通过综合评价,对PFO材料改性提高了材料ASE(amplified spontaneous emission放大自发辐射)综合发光性能并同时改善了有机发光二极管器件性能。(2)对比研究了几种共轭聚合物电解质材料用于修饰ITO(indium tin oxide氧化铟锡)电极以降低金属接触对增益介质ASE的影响,经比较得出通过共轭聚合物电解质材料poly[9,9-dioctyl-fluorene-co-(bis-N,N’-(3-carboxyphenyl)-bis-N,N’-phenylbenzidine)](BFA)界面修饰的器件具有较优异的ASE性能。通过优化各层器件结构,改善了器件ASE性能并扩宽了应用范围。(3)基于有机激光增益介质ASE特性设计出一种高灵敏度溶液检测传感器件。该器件通过溶液折射率细微的差别会引起增益介质ASE峰位的明显漂移,通过探测ASE峰位的变化,可以极容易的分辨出溶液的浓度和种类。该传感器件检测灵敏度高,制作工艺简便且集成度高,将为医疗检验、环境监测等领域提供简单、低成本、高灵敏度的溶液检测手段。
[Abstract]:In recent years, organic laser devices have been paid more and more attention by researchers for their advantages such as wide range of adjustable coherent sources, compact structure, easy fabrication and low price. Through the unremitting efforts of the researchers, great progress has been made in the related research work, and the optical pumped solid state organic laser has been successfully realized. Unfortunately, how to realize electrically pumped organic semiconductor laser is an urgent problem in organic laser field. Based on the basic principle of laser, the history and development of organic semiconductor laser are described in this paper, and the material, device structure and application of organic semiconductor laser are summarized and summarized. The research status and development bottleneck of organic semiconductor laser are discussed, and the application prospect of organic semiconductor laser is introduced. In this paper, some meaningful researches are made in the aspects of organic laser material modification, interfacial modification and sensing application. (1) innovative use of paraffin oil to control the photoluminescence properties of 尾 -phase in poly (9-dioctyl fluorene) films. The luminescence properties of PFO thin films were compared by adding a small amount of paraffin oil to the PFO toluene solution to adjust the 尾 phase composition of the PFO films, and to compare the luminescence properties of the PFO films with different 尾 phase components. The application prospect of modified materials in organic laser devices and organic light emitting diodes (OLEDs) was evaluated. Through a comprehensive evaluation, (2) several conjugated polymer electrolytes were used to modify (indium tin oxide oxygen. (2) the comprehensive luminescence performance of ASE (amplified spontaneous emission (ASE) and the performance of organic light-emitting diode (OLEDs) were improved. (2) several conjugated polymer electrolytes were compared and studied. Indium tin) electrode to reduce the influence of metal contact on gain medium ASE, The interfacial modification of conjugated polymer electrolyte poly [99-dioctyl-fluorene-co- (3-carboxyphenyl) -bis-na-phenylbenzidine)] (BFAs) has excellent ASE properties. By optimizing the structure of each layer, the ASE performance of the device is improved and the application range is broadened. (3) based on the ASE characteristics of organic laser gain medium, a high sensitivity solution detection sensor is designed. The device can cause the obvious drift of the ASE peak position of gain medium through the slight difference of the refractive index of the solution. By detecting the change of the ASE peak position, the concentration and the type of the solution can be easily distinguished. The sensor has the advantages of high detection sensitivity, simple fabrication process and high integration. It will provide a simple, low cost and high sensitivity solution detection method for medical inspection, environmental monitoring and other fields.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN24;TP212

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