SBIR Phase II: Novel Compositions for Narrow Bandwidth Light Emitting Diode Phosphors

SBIR 第二阶段：窄带宽发光二极管荧光粉的新型组合物

• 批准号: 1534771
• 负责人: Jonathan Melman
• 金额: $ 72.97万
• 依托单位: EIE Materials, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-01 至 2018-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1534771&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Novel; Compositions

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase II project is the development of a novel phosphor material system that drives up to a 20% improvement in energy efficiency of phosphor-converted LEDs (pcLEDs) over current state-of-the-art phosphor material systems in nearly all pcLED applications. The market for LED phosphors in 2012 was roughly $500 million and is expected to reach $1.2 billion by 2016. The 20% improvement in the packaged LED efficiency will also trigger a cascade of tangible impacts at the end-product system level such as using fewer LEDs, increasing efficacy (lumens per watt) and mobile device battery life, reducing electronic driver complexity, reducing heat, a thinner form factor, and a far more brilliant color gamut. The anticipated results from this grant will satisfy the 2020 goals for down-converting materials laid out in the U.S. Department of Energy's 2013 Multi-Year Program Plan, bringing these efficacy and efficiency goals and standards to market four years ahead of schedule.This Small Business Innovation Research Phase II project aims to further develop a novel and proprietary phosphor material system for use in phosphor-converted light-emitting diode (pcLED) applications that will improve pcLED efficacy up to 20%. In display backlighting, 20-40% of the light emitted by the state-of-the-art phosphors miss the sweet spot of the display's color filters resulting in unused light and wasted energy. Similarly, in general lighting approximately 15% of the emitted light falls outside the visible spectrum, again resulting in wasted energy. The technology developed is a phosphor material utilizing a novel chemistry that exhibits a narrow light emission spectrum to increase LED brightness and energy efficiency by 10-20% in display backlighting and up to 15% in general lighting applications. Prototype materials have been synthesized that exhibit a narrow emission peak at target wavelengths, and the next steps include optimization and characterization of the most effective compositions. The anticipated results of this project are narrow-band phosphor materials that exhibit performance and reliability characteristics commensurate with industry standards.

小型企业创新研究(SBIR)第二阶段项目的更广泛影响/商业潜力是开发一种新型荧光粉材料系统，在几乎所有PCLED应用中，该系统推动磷光粉转换LED(PCLED)的能效比当前最先进的荧光粉材料系统提高高达20%。2012年LED荧光粉的市场规模约为5亿美元，预计到2016年将达到12亿美元。封装LED能效提高20%还将在终端产品系统层面引发一系列切实的影响，例如使用更少的LED、提高能效(每瓦流明)和移动设备电池寿命、降低电子驱动器的复杂性、减少热量、更薄的外形和更明亮的色域。这笔赠款的预期结果将满足美国能源部2013年多年计划计划中提出的2020年下转换材料目标，提前四年将这些功效和效率目标和标准推向市场。这个小型企业创新研究第二阶段项目旨在进一步开发一种用于磷转换发光二极管(PCLED)应用的新型专有荧光粉材料系统，该系统将使PCLED的能效提高20%。在显示器的背光照明中，最先进的荧光粉发出的光有20%-40%错过了显示器滤色器的最佳位置，导致未使用的光和浪费的能量。同样，在一般的照明中，大约15%的发射光落在可见光光谱之外，同样会导致能量浪费。开发的技术是一种荧光粉材料，利用一种新型的化学物质，具有窄的发光光谱，在显示器背光中将LED亮度和能效提高10-20%，在一般照明应用中最高可提高15%。已经合成了在目标波长显示出窄发射峰的原型材料，下一步包括优化和表征最有效的成分。该项目的预期结果是显示出符合行业标准的性能和可靠性特征的窄带荧光粉材料。