Engineering New Nanostructured Materials for Tunable Light-Matter Interactions

工程新型纳米结构材料可调节光-物质相互作用

• 批准号: RGPIN-2017-06405
• 负责人: Kherani, Nazir
• 金额: $ 3.42万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=712225
• 关键词: Engineering; New; Nanostructured; Materials; Tunable

Nanomaterials engineering presents a rich venue for the development of new materials with unique functionalities amenable to a variety of applications computing, communications, sensing, and energy to name a few. This abundance of possibilities arises from the fact that at the nanoscale, size shape and structure play a significant role in determining material properties and associated phenomena - in addition to composition. One exciting field of study is that of light-matter interactions at the nanoscale, and in particular, lines of inquiry motivated by the objective of developing effective means of harnessing light energy. Considering that the unremitting rays of the sun bathe the globe in light energy at an average power level of ~89,000 TW* some three orders beyond our present global energy consumption rate of ~20 TW and where the latter is principally comprised of depleting fossil fuels it clearly behooves us to develop the next generation of materials and devices that can effectively tap this light energy generating electricity and solar fuels, daylighting, heating and cooling and thus advancing the vision of realizing a sustainable society. Dr. Kherani's research program is to develop new nanomaterials with a high degree of compositional, structural and size control that will enable the attainment of desired light-matter interaction in devices that harvest and control light energy, as well as allied emergent devices in the fields of sensing, imaging and photonics in general. Advances in tunable nanomaterials capable of enhanced interaction with visible, infrared, and mid-infrared radiation can lead to new paradigmsenabling effective conversion of solar and thermal radiation into electrical energy, and efficient utilization of light energy through facile control over the flow of visible and invisible light energy (for example, through windows). Further, rationally designed nanomaterials can also be applied for photoactive applications including smart photo-thermo-response optical devices, photocatalytic generation of solar fuels (for example, hydrogen and hydrocarbon fuels from solar energy) and artificial photosynthesis. ________________ *While this is the total power flux, the technical potential of electricity generation is ~7,500 TW and that for solar fuels (hydrogen production) is ~2,500 TW; the latter estimates include 30% and 10% photovoltaic and photochemical conversion efficiencies, respectively. These figures also account for the generally inaccessible oceans and frigid poles.

纳米材料工程为开发具有独特功能的新材料提供了一个丰富的场所，可容纳各种应用计算，通信，感应和能量，仅举几例。这种可能性源于以下事实：除组成外，在纳米级，大小和结构在确定材料特性和相关现象中起着重要作用。一个令人兴奋的研究领域是纳米级的光结合相互作用，尤其是以开发有效利用轻能手段的目的而动机的探究线。 考虑到，太阳的不懈射线在平均能量水平下以〜89,000的平均功率为全球沐浴在我们目前的全球能源消耗率之外的三个订单左右，而后者主要是耗尽的化石燃料，而后者则显然由我们表现出的材料和供热的材料和供热，并在供热和供热的下一代，从而使我们的下一代能量供电，并在供热中进行供热，并在供热中进行供热，并在潮流中进行供热。促进实现可持续社会的愿景。 Kherani博士的研究计划是开发具有高度组成，结构和尺寸控制的新纳米材料，这将使在收获和控制光能的设备中获得所需的光结合相互作用，以及在一般来说，在感应，成像和光子疗法领域中相关的新出现设备。能够增强与可见，红外和中红外辐射相互作用的可调节纳米材料的进展会导致新的范式源，从而有效地将太阳能和热辐射转化为电能，并有效地利用光能通过可见和可见光的光能流动通过易于控制的光能（例如，通过窗户）。此外，理性设计的纳米材料还可以用于光活性应用，包括智能光电响应光学设备，太阳能燃料的光催化产生（例如，来自太阳能的氢和碳氢化合物燃料）和人工光合物。 ________________ *虽然这是总功率通量，但发电的技术潜力约为7,500 TW，对于太阳能燃料（氢生产）的技术潜力约为2,500 TW；后一个估计分别包括30％和10％的光伏和光化学转化效率。这些数字还解释了通常无法接近的海洋和冰冷的杆子。