SBIR Phase I: Synthesis of New Conjugated Polymers for Stimulated Emission of Light

SBIR 第一阶段：用于受激光发射的新型共轭聚合物的合成

• 批准号: 9660570
• 负责人: Qibing Pei
• 金额: $ 7.49万
• 依托单位: UNIAX Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9660570&HistoricalAwards=false
• 关键词: SBIR; Phase; Synthesis; New; Conjugated

*** 9660570 Pei Recently, stimulated emission from polymer light-emitting materials and devices has also been of considerable interest. Based on new results demonstrating both polymer light emitting diodes ( LEDs) in microcavity geometries and photo-pumped stimulated emission using luminescent conjugated polymers, attention has now focused on efforts to realize electrically pumped polymer laser diodes. These efforts are hindered, however, by the fact that the luminescent conjugated polymers which have been the subject of the most intense investigation lack either sufficiently high photoluminescent efficient or carrier mobility (or both). In other candidate polymers, self-absorption, photo-induced absorption, or electro-induced absorption at wavelengths in the emission region prevents any stimulated emission. In this Phase I proposal, the synthesis of a series of luminescent conjugated polymers as candidates for evaluation against well-defined criteria is outlined. The polymers will be processed into high quality thin films for use in the fabrication of polymer light-emitting devices or to investigate photopumped stimulated emission. Optoelectric devices based on "plastic" semiconductors promise efficient, low cost devices which mimic the function of inorganic semiconductors but enjoy the benefits of being made of plastic: easy processing , mechanically flexible and durable. The market for the compact coherent light sources is large and growing. ***

*** 9660570 Pei 最近，聚合物发光材料和器件的受激发射也引起了人们的极大兴趣。基于微腔几何形状中的聚合物发光二极管 (LED) 和使用发光共轭聚合物的光泵受激发射的新结果，人们的注意力现在集中在实现电泵聚合物激光二极管的努力上。然而，这些努力受到以下事实的阻碍：作为最深入研究主题的发光共轭聚合物缺乏足够高的光致发光效率或载流子迁移率（或两者）。在其他候选聚合物中，发射区域波长处的自吸收、光致吸收或电致吸收可防止任何受激发射。在第一阶段的提案中，概述了一系列发光共轭聚合物的合成，作为根据明确标准进行评估的候选材料。这些聚合物将被加工成高质量薄膜，用于制造聚合物发光器件或研究光泵受激发射。 基于“塑料”半导体的光电器件有望实现高效、低成本的器件，其模仿无机半导体的功能，但具有塑料制成的优点：易于加工、机械灵活且耐用。紧凑型相干光源的市场巨大且不断增长。 ***