苯并噻唑类铱配合物及其主链型聚合物的制备与性能研究
发布时间：2019-07-06 20:02
【摘要】：有机/聚合物电致发光器件(OLED or PLED)因其自发光、视角广、效率高、发光颜色连续可调和制作工艺简单等优点将成为新一代发光载体。环金属铱配合物因其激发态寿命短、发光效率高以及可以通过对配体的修饰覆盖可见光区的全色显示等优点而被广泛应用于磷光电致发光器件。采用化学键键入的连接方式将磷光铱配合物连接到聚合物链上,可有效地避免因聚集而产生的浓度猝灭现象,解决掺杂型有机发光器件使用过程中存在的相分离以及在高电流密度下稳定性差等问题。此外,铱配合物的斯托克斯位移较大并且具有多种激发态使得其对外部环境更为敏感,因此也常常被用于设计磷光化学传感器。首先,本论文设计合成了基于2-(4-溴苯基)-苯并噻唑类环金属铱配合物键入在聚芴或聚芴-咔唑主链上的磷光聚合物,研究了其光致发光性能和电致发光性能。其次,通过引入对待检测物质具有识别功能的基团,合成了一系列基于2-苯基-苯并噻唑类环金属铱配合物的衍生物,并进行了化学传感器方面的应用研究。通过红外光谱、核磁、质谱等分析手段对合成的配合物和聚合物进行了结构表征,对客体磷光铱配合物和聚合物的光致发光性能等进行了研究。将聚合物通过旋涂和蒸镀等手段制成器件并研究了其电致发光性能。通过光物理性能测试等手段研究了化学传感器的选择性。
文内图片：
图片说明：图１邋ＯＬＥＤ在固态照明和平板显示的应用逡逑Ｆｉ．邋１邋Ｔｈｅ邋ａｌｉｃａｔｉｏｎｓ邋ｏｆ邋ＯＬＥＤ邋化邋ｆｌａｔ－ａｎｅｌ邋ｄｉｓｌａａｎｄ邋ｓｏｌｉｄ－ｓｔａｔｅ邋ｌｉｈｔｉｎ
[Abstract]:Organic / polymer electroluminescent device (OLED or PLED) will become a new generation of light-emitting carrier because of its self-luminous, wide viewing angle, high efficiency, continuous adjustable luminous color and simple fabrication process. Cyclic metal iridium complexes have been widely used in phosphoelectroluminescent devices because of their short excited state life, high luminous efficiency and panchromatic display in visible region by modifying ligands. By connecting the phosphor iridium complex to the polymer chain by chemical bond typing, the concentration quenching caused by aggregation can be effectively avoided, and the problems of phase separation and poor stability at high current density can be solved. In addition, iridium complexes are often used in the design of phosphochemical sensors because of their large Stokes shift and a variety of excited states, which make them more sensitive to the external environment. Firstly, a phosphorescence polymer based on 2-(4-bromophenyl)-benzothiazole ring iridium complex typed on the main chain of polyfluorene or polyfluorene-carbazole was designed and synthesized, and its photoluminescence and electroluminescent properties were studied. Secondly, a series of derivatives based on 2-phenyl-benzothiazole ring metal iridium complexes were synthesized by introducing groups which have recognition function to the detected substances, and the application of chemical sensors was studied. The structures of the synthesized complexes and polymers were characterized by infrared spectroscopy, nuclear magnetic resonance and mass spectrometry, and the photoluminescence properties of the guest phosphoiridium complexes and polymers were studied. The polymer was fabricated by rotating coating and evaporation, and its electroluminous properties were studied. The selectivity of chemical sensors was studied by photophysical performance test.
【学位授予单位】：福建师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：O641.4
本文编号：2511289
文内图片：
图片说明：图１邋ＯＬＥＤ在固态照明和平板显示的应用逡逑Ｆｉ．邋１邋Ｔｈｅ邋ａｌｉｃａｔｉｏｎｓ邋ｏｆ邋ＯＬＥＤ邋化邋ｆｌａｔ－ａｎｅｌ邋ｄｉｓｌａａｎｄ邋ｓｏｌｉｄ－ｓｔａｔｅ邋ｌｉｈｔｉｎ
[Abstract]:Organic / polymer electroluminescent device (OLED or PLED) will become a new generation of light-emitting carrier because of its self-luminous, wide viewing angle, high efficiency, continuous adjustable luminous color and simple fabrication process. Cyclic metal iridium complexes have been widely used in phosphoelectroluminescent devices because of their short excited state life, high luminous efficiency and panchromatic display in visible region by modifying ligands. By connecting the phosphor iridium complex to the polymer chain by chemical bond typing, the concentration quenching caused by aggregation can be effectively avoided, and the problems of phase separation and poor stability at high current density can be solved. In addition, iridium complexes are often used in the design of phosphochemical sensors because of their large Stokes shift and a variety of excited states, which make them more sensitive to the external environment. Firstly, a phosphorescence polymer based on 2-(4-bromophenyl)-benzothiazole ring iridium complex typed on the main chain of polyfluorene or polyfluorene-carbazole was designed and synthesized, and its photoluminescence and electroluminescent properties were studied. Secondly, a series of derivatives based on 2-phenyl-benzothiazole ring metal iridium complexes were synthesized by introducing groups which have recognition function to the detected substances, and the application of chemical sensors was studied. The structures of the synthesized complexes and polymers were characterized by infrared spectroscopy, nuclear magnetic resonance and mass spectrometry, and the photoluminescence properties of the guest phosphoiridium complexes and polymers were studied. The polymer was fabricated by rotating coating and evaporation, and its electroluminous properties were studied. The selectivity of chemical sensors was studied by photophysical performance test.
【学位授予单位】：福建师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：O641.4
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1 李冬冬;苯并噻唑类铱配合物及其主链型聚合物的制备与性能研究[D];福建师范大学;2016年
，本文编号：2511289
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