SBIR Phase I: Synthesis of New Conjugated Polymers as Active Materials for Solid State Polymer Lasers

9861313这个小型企业创新研究第一阶段项目旨在合成一系列新的共轭聚合物，作为固态聚合物激光器的有源材料。目前，半导体聚合物制作半导体激光器的努力受到净增益限制的阻碍，这些限制包括光致吸收、浓度猝灭和自吸收。这项提议的主题是共轭聚合物的稀释共混，可以通过Forster能量转移解决这些问题。我们将合成一系列烷氧基苯基PPV和烷基苯基PPV作为主体聚合物，以展示和开发共轭聚合物共混物作为高增益/低损耗激光材料，并优化Forster从主体到客体的能量传递。该项目的成功完成将为聚合物提供与客体聚合物具有更高的分子量和良好的溶解性、高的光致发光效率、良好的兼容性和最大的光谱重叠的性能。随后，在第二阶段中，将使用光泵浦受激发射来指导电抽运激光器件的制备。这项研究将对开发高效、坚固的材料做出重要贡献，为从简单的字母数字显示器到高信息含量平板显示器的广泛应用提供重量轻、低功率可寻址的光源阵列。

9861313 This Small Business Innovation Research Phase I Project is to synthesize a series of new conjugated polymers as active materials for solid state polymer lasers. Recent efforts to make diode lasers from semiconducting polymers are hindered by limitations to net gain, which include photoinduced absorption (PA), concentration quenching and self-absorption. Dilute blends of conjugated polymers, the subject of this proposal, can solve these problems through Forster energy transfer. We are going to synthesize a series of alkoxyphenyl-PPV and alkylphenyl-PPV as the host polymer to demonstrate and develop conjugated polymer blends as high gain/low loss laser materials and to optimize the Forster energy transfer from host to guest. Successful completion of the project will provide polymers with properties of higher molecular weight and good solubility, high photoluminescence efficiency, good compatibility and maximum spectra overlap with the guest polymers. Subsequently, in Phase II, photo-pumped stimulated emission will be used to guide the fabrication of the electrical pumped laser devices. The research will make an important contribution to development of efficient, robust materials providing light weight, low power addressable arrays of light sources for a broad range of applications from simple alphanumeric displays to high information content flat panel displays.