基于新型共聚物和钙钛矿材料的激光性能研究
[Abstract]:1. In this paper, the optical properties of a new organic conjugated polymer F1/4F8BT and its blend films with PFO were studied in detail. This new yellow-green photopolymer material F1/4F8BT and PFO have excellent optical gain characteristics. The experimental results show that in PFO:F8BT blend films, due to the competitive relationship between F8BT spontaneous emission and PFO polaron pair, the film has a higher spontaneous emission amplification (Amplified Spontaneous Emission,ASE threshold, while the ASE threshold of F1/4F8BT and PFO blend films is 30% lower than that of F8BT films, and its optical net gain is increased by 50%. In this way, we have developed a new type of yellow-green luminous polymer, which has stronger luminous properties and almost the same production method and cost than the commercial yellow-green luminous material sold on the market, and its market-oriented prospect has great potential. 2. Then, the optical properties of the most popular perovskite materials in photovoltaic field are characterized in this paper. It is found that the perovskite materials have excellent spontaneous emission amplification characteristics, and the emission spectrum can be adjusted to the yellow and green band by changing the halogen group elements. The surface morphology of perovskite thin film devices was observed and studied by scanning electron microscope. Because of the excellent semiconductor properties of perovskite materials, we apply it to the development of organic-inorganic hybrid semiconductor lasers, and creatively introduce waveguide elements into the distributed feedback (Distributed Feed Back,DFB) laser structure, which is beneficial to reduce the excitation threshold of the laser. The structure of the laser device is designed by using the professional optical simulation software, and the optical performance of the whole device is simulated, and the laser output results are obtained. For the preparation of perovskite electric pump laser in laboratory, the device structure and fabrication method are suggested, which provides a reference for researchers in this field to continue to explore. In this paper, the design of polymer laser materials, the preliminary study of optical gain performance of perovskite materials and the simulation of optical parameters of laser devices expand a new idea for the study of new and more effective organic and organic / inorganic hybrid laser devices.
【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】:TN304;TN248
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