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

0906873 Garno“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“技术性的。本计画主要探讨与分子电子学相关之卟啉及酞菁奈米结构之制造方法。具有再现性的分子电导的测量是公认的挑战，沿着需要建立用于将分子以期望的取向和覆盖可再现地沉积到表面上的方法。扫描探针光刻（SPL）将被应用于使CP（导电探针）-原子力显微镜测量设计的平面阵列的纳米结构。计划中的测试平台将包括一个围绕纳米粒子的n-alkanetherisSAM（自组装单分子层）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预测模型的电子传输设计的自由碱和金属配位的卟啉和酞菁组件。更好地理解自组织和表面组装如何影响电性能是一个预期的结果。新的SPL方法将率先控制卟啉和酞菁的组装。通过将卟啉和酞菁在明确的表面上排列和定向，可以实现不同分子路径的电荷传输局部测量。该项目解决了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机会，使其参与跨学科培训和研究。计划的活动包括少数民族学生招聘，赞助本科生的研究经验，通过路易斯安那州立大学化学演示和年度超级科学星期六计划K-12外展，主办仪器研讨会，赞助客座研究人员和与HBCU计划联网。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，并提高他们的教育经验。课程的发展预计将把表面科学和分子成像的概念纳入本科课程。

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.