STTR Phase I: Development of High-Speed Infrared-Transparent Flexible Transistors Using Electronic-Grade Carbon Nanotube Solutions

STTR 第一阶段：使用电子级碳纳米管解决方案开发高速红外透明柔性晶体管

• 批准号: 0712095
• 负责人: Carissa Jones
• 金额: --
• 依托单位: Brewer Science, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0712095&HistoricalAwards=false
• 关键词: STTR; Phase; Development; Speed; Infrared

This Small Business Technology Transfer (STTR) Phase I research project aims to develop an innovative high speed IR-transparent flexible thin-film transistor (TFT) technology for application to conformal IR invisible electronics by using unique electronic-grade carbon nanotube (CNT) solutions that contain individually suspended ultrapure CNTs without any surfactant. With numerous simple solution-casting methods, ultrapure CNT films of various densities can be formed. Such films possess ultrahigh carrier mobility, great mechanical resilience, and superior IR transmittance. Meanwhile, the unique room-temperature solution-processable CNTs would enable mass production of large-area high-speed conformal integrated circuits on virtually any desired flexible substrate at low cost and high throughput without the need for special lithography equipment. In Phase I, a prototype flexible CNT-TFT will be fabricated for conducting technical feasibility investigation, and potential commercial feasibility will be assessed. The work in Phase II would concentrate on achieving large-area high-speed IR-invisible integrated circuits on flexible substrates at low cost and high throughput. Through this project electronic structures and IR properties of CNT films will be further revealed. Bandgap engineering techniques will be developed to enable the tuning of electrical and optical properties of CNT films. Purification techniques and post-fabrication processes will be optimized to enhance the field-effect mobility and the on-off ratio of CNT-TFTs. Various solution-casting methods will be explored to achieve high-rate cost-effective manufacturing of large-area integrated circuits on flexible substrates. The outcomes of this project will provide a solid base for developing a family of electronic-grade CNT solution products suitable for a great variety of applications. This project is potentially importance for a great variety of applications, such as flexible electronics, IR-invisible antennas, and embedded IR sensing, imaging, and communications. This project will train both industry workers and college students in cutting-edge cross-disciplinary areas of Nanomaterial Science and Nanoelectronics. Internships will be offered to students as part of the industry training, which will help to provide and maintain qualified hi-tech work forces in the United States.

这个小型企业技术转移(STTR)第一阶段研究项目旨在开发一种创新的高速红外透明柔性薄膜晶体管(TFT)技术，通过使用独特的电子级碳纳米管(CNT)解决方案来应用于共形IR隐形电子设备，CNT解决方案包含单独悬浮的超纯碳纳米管，不含任何表面活性剂。通过多种简单的溶液浇注方法，可以制备出不同密度的超纯碳纳米管薄膜。这种薄膜具有超高的载流子迁移率、极大的机械弹性和优异的红外透过率。同时，独特的室温溶液可处理碳纳米管将能够在几乎任何所需的柔性衬底上以低成本和高产量大规模生产大面积高速共形集成电路，而不需要特殊的光刻设备。在第一阶段，将制造一个柔性CNT-TFT原型，用于进行技术可行性研究，并评估潜在的商业可行性。第二阶段的工作将集中在以低成本和高产量在柔性衬底上实现大面积高速红外隐形集成电路。通过该项目，将进一步揭示碳纳米管薄膜的电子结构和红外特性。带隙工程技术将被开发出来，以实现对碳纳米管薄膜的电学和光学性质的调节。提纯技术和后制造工艺将得到优化，以提高CNT-TFT的场效应迁移率和开关比。将探索各种溶液浇铸方法，以实现在柔性基板上高速、低成本地制造大面积集成电路。该项目的成果将为开发适用于各种应用的电子级碳纳米管解决方案产品系列提供坚实的基础。该项目对于柔性电子学、红外隐形天线、嵌入式红外传感、成像和通信等多种应用具有潜在的重要意义。该项目将在纳米材料科学和纳米电子学的前沿交叉学科领域培训行业工作者和大学生。作为行业培训的一部分，将为学生提供实习机会，这将有助于在美国提供和保持合格的高科技劳动力。