EAGER: SUPER: Search for high-temperature superconductivity in heterostructured two-dimensional organic materials

EAGER：SUPER：寻找异质结构二维有机材料的高温超导性

• 批准号: 2133014
• 负责人: Andrey Rogachev
• 金额: $ 29.92万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2133014&HistoricalAwards=false
• 关键词: EAGER; SUPER; Search; temperature; superconductivity

Nontechnical Abstract:The project sets the goal to design and fabricate single- and multi-layer organic materials which can host superconductivity, potentially at room temperature and ambient pressure. Obviously, this discovery would be a revolution across all technologies but in particular in microelectronics and energy transfer and generation. But even if this grand goal is not achieved, the development of the protocols for growth of multilayered organic materials with programmed functionality enables applications in semiconductor and renewable energy industries, optics and lasing. On the educational side, the project brings into the PI’s group an entirely new area of research linked to organic chemistry. Through group meetings and direct participation in the research, graduate and undergraduate students broaden their knowledge and expertise in organic and quantum chemistry, fields that are typically not part of physics education. The project supports training of undergraduate students in organic chemistry, semiconductor processing and transport, magnetic and optical measurements. It also creates opportunities for undergraduate research during summer, to be offered to the students from Department of Chemistry, thus exposing them to many aspects of physics lab. This engagement makes students ready for future collaborative multi-disciplinary work in industrial and academic environment.Technical Abstract: The research team uses the state-of-the-art method of organic molecular beam epitaxy (OMLE) to fabricate several series of organic heterostructured materials anticipated to have superconducting properties at high temperatures. OMLE allows to construct unique molecular intra-layer and inter-layer arrangements inaccessible by standard methods. They include self-assembled monolayers and multilayers made from aromatic molecules such as picene, chrysene, NTCDI, and anchored fullerenes in the configuration of field-effect transistor, which allows to inject carriers by adjusting the gate potential. Molecules with donor and acceptor properties are mixed to imitate molecular arrangements in charge-transfer organic superconductors. The physical properties of materials are characterized by transport and magnetic measurements in the range 1.5-300 K in the PI’s lab. The growth of the materials is monitored by in-situ spectroscopic ellipsometry. The charge states, electronic band formation, charge-transfer and optical properties are studied using University of Utah shared facilities: x-ray photoelectron spectroscopy, optical absorption, and Raman spectroscopies.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

非技术摘要：该项目设定了设计和制造单层和多层有机材料的目标，这些有机材料可能会在室温和环境压力下托管超导性。显然，这一发现将是所有技术的一场革命，尤其是在微电子和能源转移和产生方面。但是，即使没有实现这个宏伟的目标，具有编程功能的多层有机材料的增长方案的开发也可以在半导体和可再生能源行业，光学和激光范围内应用。在教育方面，该项目使PI集团成为与有机化学有关的全新研究领域。通过小组会议并直接参与研究，毕业和本科生扩大了他们在有机和量子化学方面的知识和专业知识，这些领域通常不是物理教育的一部分。该项目支持对有机化学，半导体加工和运输，磁性和光学测量的培训。它还为夏季的本科研究创造了机会，并将提供给化学系的学生，从而将其暴露于物理实验室的许多方面。这种参与使学生准备在工业和学术环境中为将来的合作多学科工作做好准备。技术摘要：研究团队使用有机分子束外观外观（OMLE）的最新方法来制造几种预期在高温下具有超导性能的有机异质结构材料。 OMLE允许通过标准方法构建独特的分子内和层间排列。它们包括由芳香族分子制成的自组装单层和多层，例如Picene，Chrysene，NTCDI和锚定的富勒烯，并在现场效应变压器的构型中锚定，这允许通过调节栅极电位来注入载体。混合具有供体和受体特性的分子以模仿电荷转移有机超导体中的分子排列。材料的物理特性的特征在于PI实验室中1.5-300 K范围内的运输和磁性测量值。通过原位光谱椭圆法监测材料的生长。使用犹他大学共享设施对电荷状态，电子带形成，电荷转移和光学特性进行了研究：X射线光电光谱，光学吸收和拉曼光谱镜。这奖反映了NSF的法定任务，并认为通过该基金会的知识优点和广泛的criperia criperia criperia criperia criperia criperia criperia criperia criperia criperia rection the precion take this奖。