Photonically Strongly Coupled Organic/Inorganic Nanocomposites for Light Emitter and Photovoltaic Applications

用于发光体和光伏应用的光子强耦合有机/无机纳米复合材料

• 批准号: 0725740
• 负责人: Arto Nurmikko
• 金额: $ 27万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0725740&HistoricalAwards=false
• 关键词: Photonically; Strongly; Coupled; Organic; Inorganic

"Photonically Strongly Coupled Organic/Inorganic Nanocomposites for LightEmitter and Photovoltaic Applications" (ECCS-0725740)In this research, fundamental photonic phenomena are combined with new types of organic/inorganic intercalated media on the nanoscale, with the aim to derive exceptionally strong light-matter interaction for applications ranging from compact light emitters to novel photovoltaics. The intellectual merit of the work lies in creating organic-inorganic hybrid photonic materials whose electronic excitations couple beyond the perturbative regime for enhanced light- matter interaction, which exceeds that in present optical devices. This is accomplished by special combination of resonantly interacting materials, exploiting two classes of material which each possess significant optical oscillator strengths, but in a highly contrasting electronic environment. The organic subcomponent of the hybrid nanoscale media is formed from J-aggregate polymers which exhibit exceptional absorption and emission concentrated in narrow spectral ranges across the visible and near infrared. Spectrally matching the organic components are inorganic colloidal II-VI semiconductor quantum dots, which provide pathways via excitation and charge transfer to the organic and external electrical interfaces, respectively. The key physical feature of the intercalated hybrid medium is resonant electromagnetic excitation transfer, which can have near 100% efficiency as an electronic energy transfer channel within the two subsystems, at room temperature.The broader impact of the proposed work is the potential to insert exceptionally high performance entirely new active photonic material into functional optoelectronic devices, such as light emitters and photovoltaics, spread hyperspectrally across the visible into the near IR portions of the spectrum. The device goals aim to search for novel application spaces presently not accessible or enabled by conventional approaches to these technologies by inorganic and organic semiconductors, respectively, including visual arts. Scientifically, bridging the two rather separate branches of active optical technologies, based on inorganic and organic materials/devices, offers a new prism to view opportunities for synergy and vision to emerging photonics technologies, as well as training of interdisciplinary new generation of technologists. The subject matter of innovative, and structurally flexible and spatially extendable photonic materials offers also an excellent vehicle for outreach and connection to science, including lab experience for undergraduates and teaching aids for GK-12, the latter exploiting Brown University's excellent outreach infrastructure.

在这项研究中，“用于光发射机和光伏应用的光子耦合有机/无机纳米复合材料”（ECCS-0725740）（ECCS-0725740），基本的光子现象与新型有机/无机相互介绍的新型媒体与纳尼斯卡群岛的目标相结合，以衍生为目标。从紧凑的光发射器到新型光伏的应用的物质相互作用。这项工作的智力优点在于创建有机无机杂交光子材料，其电子激发夫妇以外的扰动式相互作用，以增强光质相互作用，这超出了当前的光学设备。这是通过共同相互作用的材料的特殊组合来实现的，利用了两类材料，它们具有重要的光学振荡器强度，但在高度对比的电子环境中。杂化纳米级培养基的有机子分量是由J聚合物组成的，它们表现出异常的吸收，发射集中在狭窄的光谱范围内，范围横跨可见光和接近红外线。频谱与有机成分相匹配的是无机胶体II-VI半导体量子点，它们分别通过激发和电荷传递到有机和外部电气接口提供途径。插入式杂化介质的关键物理特征是共振电磁激发转移，在两个子系统内，作为电子能量传递通道的效率接近100％，在室温下。拟议工作的更广泛的影响是插入异常的潜力高性能全新的活性光子材料进入功能性光电设备，例如光发射器和光伏设备，在可见的光谱中传播到频谱的接近IR部分。该设备目标旨在搜索目前无法通过无机和有机半导体（包括视觉艺术）对这些技术的常规方法访问或启用的新型应用空间。从科学上讲，基于无机和有机材料/设备的两个相当单独的主动光学技术分支提供了新的棱镜，以查看具有协同作用和愿景的机会，以培训新兴的新一代技术人员。创新的主题以及结构灵活的和空间扩展的光子材料也为宣传和与科学的联系提供了出色的工具，包括针对本科生的实验室经验和GK-12的教学辅助工具，后者利用了布朗大学出色的外展基础架构。