SBIR Phase I: Innovations in Nanowire Manufacturing: Large Scale Synthesis of Inorganic Semiconducting Nanowires and Application to Printed Electronics

SBIR第一阶段：纳米线制造的创新：无机半导体纳米线的大规模合成及其在印刷电子中的应用

• 批准号: 1214077
• 负责人: Louise Sinks
• 金额: $ 14.68万
• 依托单位: US Nano LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1214077&HistoricalAwards=false
• 关键词: SBIR; Phase; Innovations; Nanowire; Manufacturing

This Small Business Innovation Research Phase I project aims to develop large-scale manufacturing methods for inorganic semiconductor nanowires, specifically CdSe nanowires. An automated pilot reactor will be designed and built that will allow a reduction in materials cost and an improvement in the robustness of the synthesis, thus allowing a scale-up of nanowire production to multi-gram scale. The resulting nanowires will be incorporated into functional inks for printed/flexible electronics. A prototype printed photosensor will be produced as a demonstration. The demonstration device will validate that inorganic semiconducting nanowires can be incorporated into flexible/printed electronics using standard plastic substrates and commercial printing methods. The production of robust nanoinks will allow for easy incorporation into current commercial printed electronics manufacturing streams. While characterization of the materials and devices will involve a variety of techniques (including electron microscopy), the project will also focus on the validation of materials via simple optical metrology techniques (such as ultraviolet-visible spectroscopy) that could be incorporated in-line for large-scale manufacturing of nanomaterials, nanoinks, and printed substrates. The broader impact/commercial potential of this project will be to provide additional technologies for printed and flexible electronics. Flexible electronics technology is expected to be increasingly applied in a variety of applications including energy (photovoltaics, batteries, and lighting), consumer devices (displays, sensors, actuators), healthcare (sensors), communication (RFID), and defense (sensors, photovoltaics, displays). The area of flexible electronics is a rapidly growing market, with experts predicting a size of $250 billion by 2025. Appropriate technologies must be developed to replicate current solid state devices; these include printable semiconductors, insulators, conductors, and metals. Inorganic semiconducting nanowires are extremely appealing for printing; their morphology suggests that devices made with these materials would be flexible and transparent. CdSe nanowires have strong anisotropic absorption of light, suggesting their utility for thin-form photo- and polarization sensors. Such sensors are expected to be deployed in "smart" building sensor nets. The technology developed in this project will enable the creation of a variety of additional devices on a variety of substrates, including flexible films, such as plastics and metal foils, in addition to conventional rigid substrates such as glass or semiconductor wafers.

该小企业创新研究第一阶段项目旨在开发无机半导体纳米线（特别是 CdSe 纳米线）的大规模制造方法。将设计和建造一个自动化中试反应器，以降低材料成本并提高合成的稳健性，从而将纳米线生产规模扩大到数克规模。由此产生的纳米线将被纳入印刷/柔性电子产品的功能油墨中。将生产印刷光电传感器原型作为演示。该演示装置将验证无机半导体纳米线可以使用标准塑料基材和商业印刷方法整合到柔性/印刷电子产品中。强大的纳米油墨的生产将可以轻松融入当前的商业印刷电子制造流程。虽然材料和器件的表征将涉及多种技术（包括电子显微镜），但该项目还将重点通过简单的光学计量技术（例如紫外可见光谱）来验证材料，这些技术可以在线纳入纳米材料、纳米油墨和印刷基材的大规模制造。该项目更广泛的影响/商业潜力将是为印刷和柔性电子产品提供额外的技术。柔性电子技术预计将越来越多地应用于各种应用，包括能源（光伏、电池和照明）、消费设备（显示器、传感器、执行器）、医疗保健（传感器）、通信（RFID）和国防（传感器、光伏、显示器）。柔性电子领域是一个快速增长的市场，专家预测到 2025 年规模将达到 2500 亿美元。必须开发适当的技术来复制当前的固态设备；这些包括可印刷的半导体、绝缘体、导体和金属。无机半导体纳米线对于印刷非常有吸引力；它们的形态表明用这些材料制成的设备将是灵活且透明的。 CdSe 纳米线对光具有很强的各向异性吸收，表明它们可用于薄型光电和偏振传感器。此类传感器预计将部署在“智能”建筑传感器网络中。该项目开发的技术将能够在各种基材上创建各种附加器件，包括塑料和金属箔等柔性薄膜，以及玻璃或半导体晶圆等传统刚性基材。