SBIR Phase I: Photovoltaic Thread

这个小企业创新研究（SBIR）第一期项目将研究光伏线的建设，为分布式传感器网络设备供电。半导体纳米线涂层线将使高转换效率的光伏线能够以低成本和大批量制造技术制造出来。由于半导体纳米线阵列结构固有的高宽带吸收和在器件狭窄的垂直结结构中产生的电子-空穴对的有效收集，将实现高转换效率的器件。这种架构将使太阳能发电系统能够通过提供独特的集热器架构，用于分布式安全传感器网络，或者直接集成到安全传感器封装中，同时提供超过1000 Wh/kg的功率。光伏螺纹技术开创了光伏板建设的新范式。线可以编织成织物，可以很容易地用作独立的太阳能帆板帆或集成到电子产品封装作为贴花。在大型发电应用中，螺纹几何的全方位收集能力可以使太阳能电池板的建造自动跟踪太阳，消除了跟踪系统的需要和高成本，并使被动收集系统能够在一天中收集更多的能量。

This Small Business Innovation Research (SBIR) Phase I project will investigate the construction of photovoltaic thread for supplying power to distributed sensor network devices. Semiconductor nanowire coated thread will enable high conversion efficiency photovoltaic thread to be built at low cost using high volume manufacturing techniques. High conversion efficiency devices will be achieved as a result of both the intrinsic high broadband absorption of the semiconductor nanowire array structure and the efficient collection of the generated electron-hole pairs in the narrow vertical junction structure of the device. This architecture will enable solar power systems to be built that can be used in distributed security sensor networks by providing unique collector architectures or be directly integrated into the security sensor packaging while providing in excess of 1000 Wh/kg. The photovoltaic thread technology enables a new paradigm in photovoltaic panel construction. Threads may be woven into fabrics that can readily be used as standalone solar panel sails or be integrated onto electronics packages as appliques. In larger power generating applications the omnidirectional collection capability of the thread geometry can enable the construction of solar panels that automatically track the sun, eliminating the need and high cost of a tracking system and enabling passive collection systems to harvest a greater portion of the energy incident upon them throughout the day.