I-Corps: Novel Aligned Carbon Nanotube Arrays for Radiofrequency Technologies

I-Corps项目更广泛的影响/商业潜力是开发一种基于碳纳米管的新半导体材料平台，该平台具有全面应对与无线射频通信和连接相关的挑战的巨大潜力。长期以来，碳纳米管一直被视为潜在的下一代半导体，它为射频组件提供了巨大的性能和集成收益，特别是在接收和放大微弱射频信号的开关和设备中。这些组件被大量使用在几乎每一部手机、WiFi、物联网和军事通信设备中。更高的信噪比、更复杂和高效的天线技术、比现有半导体更高的工作频率和更少的信号失真，以及更好的集成都是预期的，这将是实现更快和更节能的下一代技术的关键。随着碳纳米管的进一步发展，它将成为许多主流电子技术的首选半导体材料，极大地颠覆美国和世界各地的微电子和射频产业。这个i-Corps项目的基础是开发精确沉积和对准半导体碳纳米管的方法，以利用它们在电子应用中的特殊性能。这种碳纳米管取向技术克服了数十年来一直存在的挑战(例如，缺乏取向、金属纳米管杂质、低纳米管封装密度)，这些挑战阻碍了纳米管在半导体射频元件和其他电子设备应用中的采用。这种对准是通过一种固有的可扩展工艺实现的，该工艺可以很容易地放入现有的射频半导体制造设施和工艺中。此外，室温对准方法快速且面积可扩展(已在4英寸晶片上演示)，为现有器件制造方法提供了一条简单的采用途径，允许从当前材料直接过渡。排列致密的碳纳米管阵列有望为许多不同的微电子设备带来现有材料无法实现的性能改进。最有前景的应用之一是射频设备，这将是该项目感兴趣的特定市场。定向纳米管将在更广泛的领域内通过显著提高逻辑芯片的能效和速度以及生物传感器的灵敏度等应用来实现半导体电子的革命性变革。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this I-Corps project is the development of a new semiconductor material platform based on carbon nanotubes that has enormous potential to comprehensively address challenges related to wireless radio frequency communication and connectedness. Carbon nanotubes have long been viewed as a potential next-generation semiconductor that offers large performance and integration gains for radio frequency components, particularly in switches and devices that receive and amplify weak radio frequency signals. These components are heavily used in nearly every cell phone, WiFi, internet-of-things, and military communications device. Higher signal-to-noise, more complex and efficient antenna technologies, higher operating frequency with less signal distortion than incumbent semiconductors, and better integration are all expected, which will be essential for enabling faster and more energy efficient NextG technologies. With further development, carbon nanotubes will be poised to become the semiconducting material of choice in many mainstream electronic technologies, significantly disrupting the microelectronics and radio frequency industries in the US and worldwide. This I-Corps project is based on the development of methods for the precise deposition and alignment of semiconducting carbon nanotubes to leverage their exceptional properties for electronic applications. This carbon nanotube alignment technology overcomes persistent decades-long challenges (e.g., lack of alignment, metallic nanotube impurities, low nanotube packing densities) that have prevented the adoption of nanotubes for semiconductor radio frequency components and other electronic device applications. The alignment is achieved from an inherently scalable process that can easily be dropped into existing radio frequency semiconductor fabrication facilities and processes. Moreover, the room temperature alignment methods are fast and area-scalable (already demonstrated on 4-inch wafers), offering a simple adoption path into existing device fabrication methodologies that allows for direct transition from current materials. Aligned and dense arrays of carbon nanotubes are poised to deliver performance improvements for many different microelectronic devices that cannot be achieved by incumbent materials. One of the most promising applications is in radio frequency devices, which will be the specific market of interest in this project. Aligned nanotubes will more broadly have the potential to revolutionize semiconductor electronics by significantly improving the energy efficiency and speed of logic chips and the sensitivity of biosensors, among other applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.