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这项NIRT提案的重点是在理论和实验上建立和表征将荧光单分子与库仑阻塞单电子器件集成在一起的混合器件。由此产生的多用途纳米光电有源器件是非常独特的，因为它不仅可以将电子信号转换为光信号，而且可以通过大放大进行转换。这些装置还提供了前所未有的对荧光团和NW环境的控制，提供了直接的、超灵敏的电荷波动测量，提供了一个独特的机会来确定ndq中通用开/关时间分布的微观机制，并作为表征各种荧光单分子、纳米线及其环境的纳米尺度测试平台。智力价值：本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/分子光电器件，纳米生物成像，亚细胞水平生物过程的动态监测，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的，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必要的互补专业知识，以解决项目的关键方面：量子点合成，单电子隧道（SET）设备制造，近场扫描光学显微镜和理论。更广泛的影响：除了培养纳米科学的研究生外，我们还建议本科生通过高级项目和REU计划大量参与我们的研究。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，亲眼目睹第一手的单分子成像。

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.