SBIR Phase I: Quantum Confined Atom Based Nanophosphors for Future Efficient Lighting

SBIR 第一阶段：用于未来高效照明的量子受限原子纳米磷光体

• 批准号: 0340130
• 负责人: Rameshwar Bhargava
• 金额: $ 9.98万
• 依托单位: NANOCRYSTALS TECHNOLOGY LIMITED PARTNERSHIP
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2004-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0340130&HistoricalAwards=false
• 关键词: SBIR; Phase; Quantum; Confined; Atom

This Small Business Innovation Research (SBIR) Phase I project involves the confinement of activator ions in nanocrystalline quantum dots to enhance the brightness and efficiency of LED-white lamps. These quantum confined atom (QCA)-nanophosphors involve a single activator ion confined within a 2-7 nm nanocrystal host (quantum dot) of semiconductor and insulator. The project objective involves the fabrication of the nanophosphors and characterization of their optical and thermal properties. The project will demonstrate that the enhanced luminescent and thermal properties of the phosphors can be applied to high brightness white LEDs and conventional lighting products. The improvements in lamp efficiency should be in the 15-50 percent range depending on the specific lamp. The project will also study the dependency of light generation on temperature. This would be of importance not only for the high-flux and high temperature operation of LEDs and arc lamps but would help in a basic understanding of the thermal properties of nanophosphors.The commercial application of this technology is in the replacement of incandescent lamp lighting with solid state LEDs. The cost of producing electricity is $60 billion annually in the US and lighting accounts for 20 percent of the consumption. Replacing incandescent lamps with efficient solid state LED lamps could result in huge savings and a significant reduction in electric consumption.

这个小型企业创新研究（SBIR）第一阶段项目涉及将激活剂离子限制在纳米晶体量子点中，以提高LED白光灯的亮度和效率。 这些量子限制原子（QCA）-纳米磷光体涉及被限制在半导体和绝缘体的2-7 nm的量子基质（量子点）内的单个活化剂离子。 该项目的目标包括纳米荧光粉的制造及其光学和热特性的表征。 该项目将证明增强的荧光粉的发光和热性能可应用于高亮度白色LED和传统照明产品。 灯效率的提高应在15- 50%的范围内，具体取决于具体的灯。 该项目还将研究光产生对温度的依赖性。 这不仅对LED和弧光灯的高通量和高温操作很重要，而且有助于对纳米荧光粉的热特性的基本理解。这项技术的商业应用是用固态LED代替白炽灯照明。 美国每年的发电成本为600亿美元，照明占消费的20%。用高效的固态LED灯取代白炽灯可以节省大量资金，并大大减少电力消耗。