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

这个小企业创新研究（SBIR）二期项目的更广泛的影响/商业潜力是开发一种新型荧光粉材料系统，在几乎所有的pled应用中，与目前最先进的荧光粉材料系统相比，该系统可将磷光转换led （pcLED）的能源效率提高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效率提高20%也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，提高效率（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，以及更明亮的色域。这项拨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年低转化材料目标，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二期项目旨在进一步开发一种新颖的专有荧光粉材料系统，用于磷转换发光二极管（pced）的应用，将把pced的效率提高20%。在显示器背光中，最先进的荧光粉发出的20-40%的光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，在一般照明中，大约15%的发射光落在可见光谱之外，再次导致能源浪费。该技术开发的是一种利用新型化学物质的荧光粉材料，该材料具有窄光发射光谱，可将LED的亮度和能源效率提高10-20%，用于显示背光，在普通照明应用中可提高15%。原型材料已经合成，在目标波长处表现出窄的发射峰，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窄带荧光粉材料，其性能和可靠性特征与工业标准相称。

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.