NIRT: Electronic and Mechanical Devices from Graphene Films

NIRT：石墨烯薄膜的电子和机械设备（NSF提案ECS-0609243； P.C. Eklund， PI；宾夕法尼亚州立大学）这个NSF NIRT项目侧重于由少量(n) sp2键合碳单层（即n石墨烯层膜或nGL）组成的原子薄碳薄膜制成的设备。将对这些薄膜的物理性质进行基础研究，以评估电子被限制在原子薄和窄的薄膜（条纹几何）上将如何影响电子和机械性能。条纹几何结构也将被研究用于化学传感器的开发，其中暴露的扶手椅或之字形石墨烯边缘被功能化，其端基将与特定的分析物结合。智力优势：我们还将研究基于掺杂石墨烯的高导电性电路互连的生产，理论认为这应该显示出作为二维超金属的希望。基于原子力显微镜的局部探针研究，如扫描栅显微镜和电磁力显微镜，将分别用于研究nGL场效应管中的载流子散射机制和线性色散关系。原子薄的GL条纹和膜装置将分别用于致动器（纳米肌肉）和超灵敏的质量探测器。这两种机械设备都需要详细测量和理解ngl / n的弹性模量。该项目已经建立了一个强大的理论组件，以帮助阐明我们将在这种新型原子薄膜中观察到的许多物理性质和设备行为。更广泛的影响：我们将把重点放在为K-16学生创建暑期科学营的教育单元上。为了优化这一活动，我们将再次加入已建立的行动潜力科学体验（APSE）计划，这是一个K-16宾夕法尼亚州立大学的外展和服务学习计划，大学教师，研究人员，研究生和本科生将在夏季教授动手，以科学为基础的实验室。

NIRT: Electronic and Mechanical Devices from Graphene Films (NSF proposal ECS-0609243; P.C. Eklund, PI; Penn State University)This NSF NIRT project focuses on devices built from atomically thin carbon films comprised of a small number (n) of sp2-bonded carbon monolayers (i.e., n graphene-layer film or nGL). Fundamental investigation of the physical properties of these films will be made vs. n to assess how the confinement of electrons to atomically thin and narrow films (stripe geometry) will affect the electronic and mechanical properties. The stripe geometry will also be investigated for the development of chemical sensors where the exposed armchair or zigzag graphene edges are functionalized with end groups that will bind to specific analytes. Intellectual Merit: We will also investigate the production of highly conducting circuit-interconnects based on doped graphene which theory argues should show promise as 2D supermetals. AFM-based local probe studies, such as scanned gate microscopy and electric force microscopy, will be used to investigate carrier scattering mechanisms and linear dispersion relation in a nGL FETs, respectively. Atomically thin GL stripes and membrane devices will be investigated, respectively, for actuators (nano-muscle) and ultra-sensitive mass detectors. Both of these mechanical devices will require a detailed measurement and understanding of the elastic modulus of nGLs vs n. A strong theoretical component has been built into the project to help elucidate the many physical properties and device behaviors that we will observe in this new class of atomically thin films. Broader Impacts: We will focus our outreach on the creation of educational units for summer science camps K-16 students. To optimize this activity, we will once again affiliate with the established Action Potential Science Experience (APSE) program, a K-16 Penn State outreach and service-learning program where university faculty, researchers, graduate and undergraduate students will teach hands-on, science-based laboratories during the summer.