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，基于有机晶体管的气体传感器已经有了一些初步的演示。 这些初步演示表明，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响应。 虽然这些传感器单独并不能提供太多的特异性，但它们可能被排列形成电子鼻，以类似于狗鼻子的方式为各种分析物提供高灵敏度和选择性。 特别是，可以形成适合成本敏感应用的超低成本传感器，例如分布式环境监测以及食品和药品包装的内容物监测。 这可以通过在低成本柔性基板上使用低成本印刷技术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、减少产品浪费和主动环境保护的时代，因为传感器因其极低的成本和灵活性而可以部署在无处不在的传感器网络中。 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，并将利用这些技术来演示提供高灵敏度和特异性的集成低成本电子阵列。 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。 不同系列的活性层材料将被排列在低成本塑料基板上形成高特异性传感器阵列，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深两个学生的知识基础。 特别是，将通过批判性审查计划以及实验设计和计量教程来强调对本科生的指导。 该提案的结果也将用于大学资助的高中外展计划。 高中生将被邀请参观实验室并获得基于喷墨的电路制造的实践经验。 这将提高当地高中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行业互动，将技术转让给行业和其他学术团体的研究人员。 该计划教育部分的一个组成部分侧重于招募和保留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 的少数族裔学生会面，就伯克利 EECS 深造机会提供建议。 BGESS（加州大学伯克利分校黑人研究生工程和科学学生组织）的一名代表将陪同他推动这一工作。 这项活动将用于大幅增加伯克利 EECS 中代表性不足群体的入学率和保留率。