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

“用于发光和光伏应用的强耦合有机/无机纳米复合材料”(ECCS-0725740)在这项研究中，基本的光子现象与纳米尺度上新型的有机/无机插层介质相结合，目的是为了从紧凑型光发射器到新型光伏应用得出特别强的光-物质相互作用。这项工作的智力价值在于创造了有机-无机杂化光子材料，其电子激发耦合超过了微扰区域，从而增强了光-物质相互作用，这超过了目前的光学器件。这是通过共振相互作用材料的特殊组合实现的，利用两种材料，每种材料都具有显著的光学振荡器强度，但在高度对比的电子环境中。混合纳米介质的有机亚成分是由J-聚集体聚合物形成的，J-聚集体聚合物在可见光和近红外的窄光谱范围内表现出特殊的吸收和发射。与有机成分光谱匹配的是无机胶体II-VI半导体量子点，它们分别通过激发和电荷转移提供到有机和外部电界面的路径。插层混合介质的关键物理特征是共振电磁激发传输，在室温下，作为两个子系统内的电子能量传输通道，它可以具有近100%的效率。拟议工作的更广泛影响是有可能将极高性能的全新主动光子材料插入到功能性光电子器件中，如光发射器和光伏器件，这些材料跨越可见光传播到光谱的近红外部分。该设备的目标是寻找目前无法通过无机和有机半导体(包括视觉艺术)获得或实现这些技术的传统方法的新应用空间。从科学上讲，将基于无机和有机材料/器件的有源光学技术这两个相当独立的分支连接起来，提供了一个新的棱镜，可以看到新兴光子学技术的协同和愿景机会，以及培训跨学科的新一代技术人员。创新的、结构灵活的和空间可扩展的光子材料这一主题也为扩展和与科学的联系提供了一个极好的工具，包括为本科生提供的实验室经验和GK-12的教具，后者利用了布朗大学出色的扩展基础设施。

"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.