SBIR Phase I: Novel Compositions for Narrow Bandwidth LED Phosphors

这个小型企业创新计划（SBIR）第一阶段项目旨在进一步开发一种新颖的专有荧光粉材料系统，用于磷光转换发光二极管（pled）应用，将把pled的能源效率提高20%。在显示器背光中，最先进的荧光粉发出的20-40%的光会错过显示器的最佳位置？S滤色器导致未使用的光和浪费的能源。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。在这个SBIR项目中开发的技术是利用一种新型化学物质的荧光粉材料，该材料具有狭窄的发光光谱，可以将LED的亮度和能源效率在显示背光中提高10-20%，在普通照明应用中提高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SBIR一期项目的预期成果是窄带荧光粉材料，其表现出与行业标准相称的性能特征。该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，在几乎所有的发光二极管应用中，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 （pcLEDs）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，其中9.96亿美元将来自窄带荧光粉。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。

This Small Business Innovation Program (SBIR) Phase I 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 energy efficiency 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 in this SBIR project is 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 SBIR Phase I project are narrow-band phosphor materials that exhibit performance characteristics commensurate with industry standards.The broader impact/commercial potential of this 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, of which $996 million will be addressable by narrow-band phosphors. 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.