Molecular-Level Investigations of the Conductive Properties of Designed Test Platforms of Porphyrins and Pthalocyanines using Current-Sensing AFM

使用电流感应 AFM 对设计的卟啉和酞菁测试平台的导电性能进行分子水平研究

• 批准号: 0906873
• 负责人: Jayne Garno
• 金额: $ 31.28万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0906873&HistoricalAwards=false
• 关键词: Molecular; Level; Investigations; Conductive; Properties

0906873Garno"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." Technical. This project addresses methods for creating nanostructures of porphyrins and phthalocyanines relevant to molecular electronics considerations. Measurement of molecular conductance with reproducibility is a recognized challenge along with the need to establish methods for reproducibly depositing molecules onto a surface with desired orientation and coverage. Scanning probe lithography (SPL) will be applied to enable CP (conductive probe)-AFM measurements of designed planar arrays of nanostructures. The test platforms planned will incorporate an insulating matrix layer of n-alkanethiol SAMs (self-assembled monolayers) surrounding nanopatterns as a calibration reference, for standardizing measurements. Experimental results will be used for deriving predictive models of electron transport in designed free-base and metal-coordinated porphyrin and phthalocyanine assemblies. Greater understanding of how self-organization and surface assembly influence electrical properties is an anticipated outcome. New SPL methods will be pioneered to control the assembly of porphyrins and pthalocyanines. It is expected that by arranging and orienting porphyrins and phthalocyanines on well defined surfaces, local measurements of charge transport can be enabled for different molecular pathways.Non-Technical. The project addresses fundamental research issues in a topical area of electronic/photonic materials science having technological relevance. Additionally, project activities emphasize creating and fostering opportunities for underrepresented minorities and women in interdisciplinary training and research. Planned activities include minority student recruitment, sponsoring research experiences for undergraduates, K-12 outreach through the LSU ChemDemo and annual Super Science Saturday programs, hosting instrument workshops, sponsoring guest researchers and networking with HBCU programs. The interdisciplinary nature of the proposed work enables students to interact with scientists of different areas to broaden the scope of their training as well as to enhance their educational experience. Curriculum developments are expected to bring the concepts of surface science and molecular imaging into undergraduate courses.

0906873Garno“该奖项是根据 2009 年美国复苏和再投资法案（公法 111-5）提供资金的。”技术的。该项目研究了与分子电子学考虑相关的卟啉和酞菁纳米结构的创建方法。具有可重复性的分子电导测量是一个公认的挑战，同时需要建立可重复地将分子沉积到具有所需取向和覆盖的表面上的方法。扫描探针光刻 (SPL) 将用于对设计的纳米结构平面阵列进行 CP（导电探针）-AFM 测量。计划的测试平台将包含一个围绕纳米图案的正烷硫醇 SAM（自组装单层）绝缘基质层，作为校准参考，用于标准化测量。实验结果将用于推导设计的游离碱和金属配位卟啉和酞菁组件中电子传输的预测模型。预期的结果是更好地了解自组织和表面组装如何影响电性能。将首创新的 SPL 方法来控制卟啉和酞菁的组装。预计通过在明确的表面上排列和定向卟啉和酞菁，可以针对不同的分子途径实现电荷传输的局部测量。非技术性。该项目解决具有技术相关性的电子/光子材料科学主题领域的基础研究问题。此外，项目活动强调为代表性不足的少数群体和妇女创造和促进跨学科培训和研究的机会。计划的活动包括招募少数族裔学生、资助本科生研究体验、通过 LSU ChemDemo 和年度超级科学周六项目进行 K-12 外展、举办仪器研讨会、资助客座研究人员以及与 HBCU 项目建立联系。拟议工作的跨学科性质使学生能够与不同领域的科学家互动，以扩大他们的培训范围并增强他们的教育经验。课程开发预计将表面科学和分子成像的概念引入本科课程。