MRSEC: Center for Nanoscale Science

MRSEC：纳米科学中心

• 批准号: 0820404
• 负责人: Vincent Crespi
• 金额: $ 999万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0820404&HistoricalAwards=false
• 关键词: MRSEC; Center; Nanoscale; Science

The Materials Research Science and Engineering Center (MRSEC) at the Pennsylvania State University exploits unique capabilities in materials synthesis and fabrication, microscopy, physical property measurements, molecular synthesis and theory to attain materials with new properties and functions in areas of fundamental scientific importance. The Center includes several interdisciplinary research groups (IRGs). The Motors IRG designs, synthesizes, and studies molecular, nano- and micro-scale motors that employ chemical reactions to generate force at the nanometer scale. This IRG constrains and controls motor movement via tethers, tracks, rotary bearings, gradients in the fuel concentration, magnetic or electric fields, patterns of light and interactions between motors themselves, to enable long-term applications in systems that sense, respond, organize and adapt to their environment. The IRG on Electrons in Confinement advances our understanding of electrons that are confined to move within precisely defined, narrow one-dimensional single crystals made from a wide range of metals and semiconductors. Interactions between these confined electrons generate new phenomena involving superconductivity, magnetism and the motion of electron spins. The IRG on Electromagnetic Nanostructures organizes and integrates metals and semiconductors in sophisticated patterns. By marrying the ideal media for electrons and photons, it enables a new class of in-fiber devices for the generation, modulation and detection of light. Patterned planar nanostructures generate unusual optical properties such as low, zero and negative refractive index, thereby enabling an unprecedented degree of control over the propagation of light. The IRG on Multiferroics exploits strain, the ability to stretch or compress the atoms within a lattice by depositing them layer-by-layer, to create a new class of materials that couple together elastic deformation, electric fields and magnetism, guided by computational modeling that can predict new materials. Multiferroics promise a variety of new material applications, such as electrically switched magnetic memories. Seed grants, selected through competitive peer review, will lead the Center in new scientific directions by nurturing high-risk, transformative research by both early-career and established faculty. These projects include making new electronic materials by connecting atomic clusters with conductive linker molecules and studying the quantum mechanical aspects of electron transport in one-dimensional systems. All research projects will be regularly competitively reviewed to maintain high levels of innovation, collaboration, productivity and scientific impact. The MRSEC nurtures a broad range of partnerships with national, international and industrial collaborators. Center research activities are strongly integrated with educational and industrial programs, providing interdisciplinary training within a culture of outreach for a diverse group of students and postdocs. For maximum impact, the Center?s outreach activities couple the scientific expertise and enthusiasm of its members with its partners' expertise in reaching large audiences. The MRSEC develops content on topics of public interest for K-8 summer science camps. With The Franklin Institute, the Center designs and produces hands-on cart-based shows for distribution to a national network of science museums. Center faculty will mentor high school students from the Science Leadership Academy. The Center recruits and supports students from under-represented groups at all levels through close ties with institutions in Puerto Rico, Texas, Louisiana, and (through the NSF Discovery Corps) Africa. The Center reaches a broad range of high schools and middle schools through teacher training workshops and research experiences, and mentors a diverse group of students through Research Experiences for Undergraduates. All major outreach programs are regularly assessed for efficacy and impact.

宾夕法尼亚州立大学的材料研究科学与工程中心（MRSEC）利用材料合成和制造、显微镜、物理性质测量、分子合成和理论方面的独特能力，在基础科学重要性领域获得具有新性质和功能的材料。该中心包括几个跨学科研究小组（IRG）。Motors IRG设计，合成和研究分子，纳米和微米级发动机，采用化学反应在纳米级产生力。该IRG通过系绳、轨道、旋转轴承、燃料浓度梯度、磁场或电场、光模式以及电机本身之间的相互作用来约束和控制电机运动，以实现在系统中的长期应用，这些系统可以感知、响应、组织和适应其环境。IRG对电子的限制推进了我们对电子的理解，这些电子被限制在由各种金属和半导体制成的精确定义的窄一维单晶中移动。这些受限电子之间的相互作用产生了新的现象，涉及超导性，磁性和电子自旋的运动。IRG电磁纳米结构组织和集成金属和半导体在复杂的模式。通过将电子和光子的理想介质结合起来，它可以实现一类新的光纤内设备，用于光的产生、调制和检测。图案化的平面纳米结构产生不寻常的光学性质，例如低、零和负折射率，从而能够对光的传播进行前所未有的控制。 IRG on Multiferroics利用应变，通过逐层沉积来拉伸或压缩晶格内原子的能力，以创建一类新的材料，这些材料将弹性变形，电场和磁性耦合在一起，由可以预测新材料的计算建模指导。多铁性材料有望在许多新材料上得到应用，如电开关磁存储器。通过竞争性同行评审选择的种子赠款将通过培养早期职业和现有教师的高风险，变革性研究来引领中心走向新的科学方向。 这些项目包括通过将原子团簇与导电连接分子连接来制造新的电子材料，并研究一维系统中电子传输的量子力学方面。所有研究项目将定期进行竞争性审查，以保持高水平的创新，协作，生产力和科学影响力。 MRSEC与国家、国际和行业合作者建立了广泛的伙伴关系。中心的研究活动与教育和工业计划紧密结合，为不同群体的学生和博士后提供跨学科的培训。为了达到最大的效果，中心？该组织的外联活动将其成员的科学专长和热情与其合作伙伴在接触广大受众方面的专长结合起来。 MRSEC为K-8暑期科学夏令营开发公众感兴趣的主题内容。与富兰克林研究所，该中心设计和生产的手推车为基础的显示分发到国家网络的科学博物馆。 中心教师将指导来自科学领导学院的高中生。该中心通过与波多黎各、得克萨斯州、路易斯安那州和（通过NSF探索军团）非洲机构的密切联系，从各级代表性不足的群体中招募和支持学生。该中心通过教师培训研讨会和研究经验覆盖了广泛的高中和中学，并通过本科生研究经验指导了不同的学生群体。定期评估所有主要外联方案的效力和影响。