NIRT: Spatial and Intensity Modulation of Light Emission in Fluorescent Molecules, Quantum Dots, and Nanowires

NIRT：荧光分子、量子点和纳米线中光发射的空间和强度调制

• 批准号: 0609249
• 负责人: Boldizsar Janko
• 金额: $ 119.95万
• 依托单位: University of Notre Dame
• 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: 2006-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0609249&HistoricalAwards=false
• 关键词: NIRT; Spatial; Intensity; Modulation; Light

NIRT: Spatial and Intensity Modulation of Light Emission in Fluorescent Molecules, Quantum Dots, and NanowiresJanko BoldizsarECS-0609249This NIRT proposal focuses on building and characterizing, both theoretically and experimentally, hybrid devices that integrate fluorescent single molecules with Coulomb blockaded single-electron devices. The resulting multi-purpose nanoscale opto-electronic active devices are rather unique as the electronic signal is not only converted into optical signal, but it is done so with a large amplification. These devices also provide unprecedented control over fluorophore and NW environment, give direct, ultrasensitive measure of charge fluctuations, present a unique opportunity to identify the microscopic mechanism responsible for the universal on/off time distributions in NDQs, and serve as nanoscale test-beds for characterizing a wide variety of fluorescent single-molecules, nanowires and their environments. Intellectual Merit: The breakthroughs achieved by this project will have immediate impact on a wide range of activities at the forefront of nanoscale science and technology, such as novel nanoscale/ molecularopto-electronic devices, nanoscale biological imaging, dynamic monitoring of biological processes at sub-cellular level, quantum information processing, quantum cryptography or optical quantum computation. Our research team is truly /interdisciplinary/, with PIs from physics, chemistry, electrical engineering departments and collaborators from the Bioimaging Center at Caltech. Each participant brings complementary expertise necessary to address the key aspects of the project: quantum dot synthesis, single-electron tunneling (SET) device fabrication, near-field scanning optical microscopy and theory. Broader Impacts: In addition to training graduate students in nano-science, a substantial participation of undergraduates in our research through senior projects and the REU program is proposed. The NIRT team members also collaborate with local high schools and provide high school students as well as undergraduates with the unique experience of witnessing first-hand single molecule imaging via the low cost, single molecule-sensitive, optical microscope using we developed from off-the-shelf components.

NIRT：荧光分子、量子点和纳米线中光发射的空间和强度调制Janko BoldizsarECS-0609249该NIRT提案侧重于在理论和实验上构建和表征将荧光单分子与库仑阻塞单电子器件集成的混合器件。由此产生的多用途纳米级光电有源器件是相当独特的，因为电子信号不仅被转换为光信号，而且还被放大。这些设备还提供了前所未有的控制荧光团和NW环境，提供直接的，超灵敏的测量电荷波动，提出了一个独特的机会，以确定微观机制负责通用的开/关时间分布在NDQ，并作为纳米级的测试床表征各种各样的荧光单分子，纳米线及其环境。智力优势：该项目取得的突破将对纳米科学和技术前沿的广泛活动产生直接影响，例如新型纳米/分子光电子器件、纳米生物成像、亚细胞水平的生物过程动态监测、量子信息处理、量子密码学或光量子计算。我们的研究团队是真正的/跨学科/，有来自物理，化学，电气工程部门的PI和来自加州理工学院生物成像中心的合作者。每个参与者都带来了解决该项目关键方面所需的互补专业知识：量子点合成，单电子隧穿（SET）器件制造，近场扫描光学显微镜和理论。更广泛的影响：除了培养研究生在纳米科学，本科生在我们的研究通过高级项目和REU计划的实质性参与。NIRT团队成员还与当地高中合作，为高中生和本科生提供独特的体验，通过使用我们从现成组件开发的低成本，单分子敏感的光学显微镜见证第一手单分子成像。