SBIR Phase I: Rare-Earth-Doped Wavelength Conversion Material and Optical Element

SBIR第一期：稀土掺杂波长转换材料和光学元件

• 批准号: 1013378
• 负责人: Mark Spitzer
• 金额: --
• 依托单位: Photonic Glass Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1013378&HistoricalAwards=false
• 关键词: SBIR; Phase; Rare; Earth; Doped

This Small Business Innovation Research (SBIR) Phase I project aims to integrate up and down conversion materials into a single photonic device to solve the problem of mismatch between the solar spectrum and solar cells formed from single absorbers such as silicon. Cooperative nonradiative energy transfer between rare-earth dopants will be employed as the physical mechanism to support wavelength conversion. By integrating up and down converting materials, this approach will not only enhance quantum efficiency above and below the absorber band gap, but also recover losses associated with down conversion in the up converter. In this project, fluorine-based materials developed for solid state lasers will be doped specifically for solar applications, and will be tested to determine the feasibility of efficient synergistic up and down conversion between 1 and 1000 suns. The broader/commercial impact of this project will be the potential to significantly improve energy conversion efficiency of solar cells. The spectrum mismatch addressed in this work is responsible for the loss of 50% of the energy reaching solar cells. In addition, this technology does not require changes to the solar cells or electrical connections. Therefore, the integration of this optical product into solar energy systems is straightforward.

这个小企业创新研究（SBIR）第一阶段项目旨在将上下转换材料集成到单个光子器件中，以解决太阳能光谱与由单一吸收剂（如硅）形成的太阳能电池之间不匹配的问题。稀土掺杂剂之间的协同非辐射能量传递将作为支持波长转换的物理机制。通过集成上下转换材料，这种方法不仅可以提高吸收器带隙上下的量子效率，还可以恢复上转换器中与下转换相关的损耗。在这个项目中，为固体激光器开发的氟基材料将专门用于太阳能应用，并将进行测试，以确定在1至1000个太阳之间有效协同上下转换的可行性。该项目的广泛/商业影响将是显著提高太阳能电池的能量转换效率的潜力。在这项工作中解决的光谱不匹配是导致50%的能量损失到达太阳能电池。此外，这项技术不需要改变太阳能电池或电气连接。因此，将这种光学产品集成到太阳能系统中是很简单的。