SBIR Phase I: Photovoltaic Thread

这个小型企业创新研究(SBIR)第一阶段项目将研究为分布式传感器网络设备供电的光伏线路的建设。半导体纳米线涂层线材将使利用大批量制造技术以低成本制造高转换效率的光伏线材成为可能。由于半导体纳米线阵列结构固有的高宽带吸收和在器件的窄垂直结结构中生成的电子-空穴对的有效收集，将获得高转换效率的器件。这一架构将使太阳能发电系统能够通过提供独特的收集器架构或直接集成到安全传感器包装中，从而用于分布式安全传感器网络，同时提供超过1000瓦时/公斤的功率。光伏丝扣技术为光伏电池板的建造提供了一种新的范例。线可以编织成织物，可以很容易地用作独立的太阳能电池板风帆，或者作为应用程序集成到电子封装上。在更大的发电应用中，螺纹几何形状的全方位收集功能可以构建自动跟踪太阳的太阳能电池板，消除跟踪系统的需要和高昂的成本，并使被动收集系统能够收集一整天中注入到他们身上的更大比例的能量。

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.