CAREER: Low-cost Arrayed Gas Sensors Using Inkjet-printed Organic Transistors

职业：使用喷墨印刷有机晶体管的低成本阵列气体传感器

• 批准号: 0237596
• 负责人: Vivek Subramanian
• 金额: $ 40万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-02-01 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0237596&HistoricalAwards=false
• 关键词: CAREER; Low; cost; Arrayed; Gas

In recent years, there have been some initial demonstrations of organic transistor-based gas sensors. These initial demonstrations have established that sensors using different organic active layers show different responses to different odors and gas-phase toxins. While individually these sensors do not offer much specificity, they may potentially be arrayed to form an electronic nose, offering high sensitivity and selectivity to a wide range of analytes, in a manner analogous to a dog's nose. In particular, it may be possible to form ultra-low cost sensors suitable for such cost-sensitive applications as distributed environmental monitoring and content monitoring of food and pharmaceutical packages. This may be achieved by fabricating the entire organic sensor array using a low-cost printing technology on a low-cost flexible substrate. Such a technology will usher in an era of unprecedented public safety, reduced product wastage, and proactive environmental protection since the sensors may be deployed in ubiquitous sensor networks due to their extremely low cost and flexibility. Within this proposal, the investigators will develop the device and materials technologies necessary for an arrayed sensor system, and will use these to demonstrate an integrated low-cost electronic array offering high sensitivity and specificity. Specifically, they will develop a manufacturing technology for forming these sensors on low cost plastic substrates entirely using inkjet printing. Diverse families of active layer materials will be arrayed to form high specificity sensor arrays on low-cost plastic substrates, ensuring low cost while simultaneously providing high specificity and sensitivity.An undergraduate and a graduate student will be involved in performing this work. The interdisciplinary nature of this work will further the knowledge base of both students. In particular, the mentoring of the undergraduate student will be emphasized through critical review programs and experimental design and metrology tutorials. The results of this proposal will also be used in a University-sponsored high-school outreach program. High-school students will be invited to visit the laboratory and to gain hands-on experience with inkjet-based circuit fabrication. This will increase the level of interest in science and engineering among local high-school students. Furthermore, the investigators will devote much effort to enabling transfer of the technology to researchers in industry and other academic groups through publications, web-based technology dissemination, and industrial interactions. An integral part of the educational component of this program focuses on the recruitment and retention of underrepresented minority groups. The PI will travel regularly to the eastern and southeastern United States to meet with minority students at HBCU's to advise on opportunities for advanced studies in EECS at Berkeley. A representative from BGESS (the organization of the Black Graduate Engineering and Science Students at UC Berkeley) will accompany him to facilitate this. This activity will be used to substantially increase the enrollment and retention of underrepresented groups in EECS at Berkeley.

近年来，已经有一些基于有机晶体管的气体传感器的初步演示。 这些初步的演示已经确定，使用不同有机活性层的传感器对不同的气味和气相毒素表现出不同的反应。 虽然单独这些传感器不提供太多的特异性，但它们可能被排列以形成电子鼻，以类似于狗的鼻子的方式对广泛的分析物提供高灵敏度和选择性。 特别地，可以形成适用于诸如分布式环境监测和食品和药品包装的内容物监测的成本敏感应用的超低成本传感器。 这可以通过使用低成本印刷技术在低成本柔性基板上制造整个有机传感器阵列来实现。 这种技术将迎来一个前所未有的公共安全，减少产品浪费和积极的环境保护的时代，因为传感器可以部署在无处不在的传感器网络中，由于其极低的成本和灵活性。 在该提案中，研究人员将开发阵列传感器系统所需的设备和材料技术，并将使用这些技术来展示一种集成的低成本电子阵列，提供高灵敏度和特异性。 具体来说，他们将开发一种制造技术，完全使用喷墨印刷在低成本塑料基板上形成这些传感器。 在低成本的塑料基板上排列各种活性层材料，形成高特异性的传感器阵列，确保低成本，同时提供高特异性和灵敏度。一名本科生和一名研究生将参与这项工作。 这项工作的跨学科性质将进一步加强双方学生的知识基础。 特别是，本科生的指导将通过严格的审查计划和实验设计和计量辅导强调。 这项提案的结果也将用于大学赞助的高中外展计划。 高中生将被邀请参观实验室，并获得与喷墨为基础的电路制造的实践经验。 这将提高当地高中学生对科学和工程的兴趣。 此外，研究人员将投入大量精力，通过出版物、基于网络的技术传播和工业互动，将技术转让给工业界和其他学术团体的研究人员。 该方案教育部分的一个组成部分侧重于招聘和留住代表性不足的少数群体。 PI将定期前往美国东部和东南部，与HBCU的少数民族学生会面，为伯克利EECS的高级学习机会提供建议。 来自BGESS（加州大学伯克利分校黑人研究生工程和科学学生组织）的代表将陪同他促进这一点。 这项活动将用于大幅增加入学率和在伯克利分校EECS代表性不足的群体的保留。