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

这个小型企业创新研究（SBIR）第二阶段项目的更广泛的影响/商业潜力是开发一种新型磷光体材料系统，该系统在几乎所有pcLED应用中，与当前最先进的磷光体材料系统相比，可将磷光体转换LED（pcLED）的能效提高20%。2012年LED荧光粉市场约为5亿美元，预计到2016年将达到12亿美元。封装LED效率提高20%还将在最终产品系统层面引发一系列切实的影响，例如使用更少的LED，提高效率（每瓦流明）和移动终端电池寿命，降低电子驱动器复杂性，减少热量，更薄的外形尺寸以及更明亮的色域。这笔赠款的预期结果将满足美国能源部2013年多年计划计划中规定的2020年降频材料目标，将这些功效和效率目标和标准提前四年推向市场。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荧光粉转换光的新型专有荧光粉材料系统，发光二极管（pcLED）应用，将提高pcLED效率高达20%。在显示器背光中，由最先进的磷光体发射的光的20-40%错过显示器的滤色器的最佳点，导致未使用的光和浪费的能量。类似地，在一般照明中，大约15%的发射光福尔斯落在可见光谱之外，再次导致能量浪费。所开发的技术是一种利用新型化学物质的磷光体材料，该材料具有窄的发光光谱，可将LED亮度和能效在显示器背光中提高10-20%，在一般照明应用中提高15%。已经合成了在目标波长处表现出窄发射峰的原型材料，接下来的步骤包括优化和表征最有效的组合物。该项目的预期成果是窄带磷光体材料，其表现出与行业标准相称的性能和可靠性特征。

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.