Molecular Photonic Materials

9402935 Meyer该奖项由先进材料和加工项目颁发，主要研究分子光子材料的设计、合成和表征。这些材料将来源于单片凝胶，其中稳态和随时间变化的光学特性可以系统地变化。一个关键的目标将是在固态内有效地产生长寿命的光诱导电荷分离。吸收光的物质将是嵌入溶胶-凝胶基质中的钌和锇的金属与配体的电荷转移配合物。能量和电子受体将被取代的蒽和甲基紫罗兰，拴在凝胶基质。通过将供体和受体凝胶分层，将有可能分离光吸收、能量转移和电子转移的步骤，模拟光合作用中的主要事件。这项研究将弥合已知的溶液化学和基于溶胶-凝胶处理的固态材料的新兴技术之间的差距。该技术将应用于实际的分子级器件，如化学传感器、光伏电池、线性和非线性光学器件。

9402935 Meyer This award, made in the Advanced Materials and Processing Program deals with the design, synthesis and characterization of molecular photonic materials. These materials will be derived from monolithic gels in which steady-state and time dependent optical properties can be systematically varied. A key goal will be to efficiently produce long-lived photoinduced charge separation within the solid state. Light absorbing species will be metal to ligand charge transfer complexes of ruthenium and osmium imbedded into sol-gel matrices. Energy and electron acceptors will be substituted anthracenes and methyl viologens, tethered to gel matrices. By layering gels of donors and acceptors it will be possible to segregate the steps of light absorption, energy transfer, and electron transfer, mimicking the primary events in photosynthesis. This research will bridge the gap between known solution chemistry and emerging technology of solid state materials based on sol-gel processing. The technology will find application in practical molecular level devices such as chemical sensors, photovoltaic cells, and linear and nonlinear optical devices.