CAREER: Hybrid Nanomaterials for Multi-Functional Sensors - Synthesis and Characterization of Nanocomposite Thin-Films for Device Applications

职业：用于多功能传感器的混合纳米材料 - 用于设备应用的纳米复合薄膜的合成和表征

• 批准号: 0547273
• 负责人: Adrienne Stiff-Roberts
• 金额: $ 40万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-02-01 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0547273&HistoricalAwards=false
• 关键词: CAREER; Hybrid; Nanomaterials; Multi; Functional; CAREER; Hybrid; Nanomaterials; Multi; Functional

Intellectual MeritThe objective of this research is to enable simultaneous sensing of multiple physical phenomena for application to aerosol detection, homeland security, and medical field-diagnostic tools, for example. The approach is to use hybrid nanomaterials in a monolithic, semiconductor-based heterostructure for multi-functional sensors. Two classes of quantum-confined semiconductor nanomaterials are considered; colloidal quantum dots synthesized by chemical reactions and Stranski-Krastanow quantum dots grown by strained-layer epitaxy. The grand challenges to be addressed are: i) synthesis of colloidal quantum dot/polymer nanocomposite thin-films for optoelectronic device active regions, and ii) synthesis of nanocomposite thin-films featuring disparate nanomaterials embedded in polymers or semiconductors with atomically-sharp interfaces, dopant incorporation capability, and electrical contact layers. A multi-spectral photodiode array synthesized using a hybrid nanomaterial growth system will be demonstrated to culminate the proposed project. Broader ImpactsThe investigation of hybrid nanomaterial device heterostructures for multi-functional sensors with emphasis on environmental applications addresses two 2005 NSF Priority Areas, nanoscale science/engineering and environmental biocomplexity. The proposed hybrid nanomaterial growth system enhances research infrastructure by establishing synthesis techniques for atomically-thin nanocomposite layers. The proposed activities advance discovery while promoting learning by enabling undergraduate research and enhancing the Duke University Electrical and Computer Engineering photonics graduate curriculum. The proposed activities also broaden the participation of underrepresented minorities in science and engineering through the Student Engineers Network, Strengthening Opportunities in Research Saturday Academy and Historically Black College and University student recruitment. Finally, the broad dissemination of results from the proposed activities will be accomplished through scientific publications and the NSF-supported TeachEngineering.com digital library.

智力优点这项研究的目的是同时感知多种物理现象，以应用于气溶胶检测，国土安全性和医疗现场诊断工具。该方法是将混合纳米材料用于多功能传感器的基于半导体的异质结构中。考虑了两类量子限制的半导体纳米材料。由化学反应和stranski-krastanow量子点合成的胶体量子点通过紧张的层外观延伸而生长。 The grand challenges to be addressed are: i) synthesis of colloidal quantum dot/polymer nanocomposite thin-films for optoelectronic device active regions, and ii) synthesis of nanocomposite thin-films featuring disparate nanomaterials embedded in polymers or semiconductors with atomically-sharp interfaces, dopant incorporation capability, and electrical contact layers.将证明使用混合纳米材料生长系统合成的多光谱光电二极管阵列将被证明最终导致该项目。 更广泛地影响了对多功能传感器的混合纳米材料装置异质结构的调查，重点是环境应用，涉及两个2005 NSF优先领域，纳米级科学/工程和环境生物复杂性。拟议的杂种纳米材料生长系统通过建立用于原子稀薄的纳米复合材料层的合成技术来增强研究基础设施。拟议的活动通过促进本科研究并增强杜克大学电气和计算机工程光子学研究生课程来提高学习。拟议的活动还扩大了代表性不足的少数群体通过学生工程师网络参与科学和工程的参与，增强了研究周六学院的机会以及历史悠久的黑人学院和大学生招聘。最后，将通过科学出版物和NSF支持的Teachengineering.com数字图书馆来完成对拟议活动的结果的广泛传播。