MRI: Acquisition of a Pulsed Laser Deposition System for Applications in Physics, Chemistry, Biology, Health Sciences, and Engineering.

MRI：购买脉冲激光沉积系统，用于物理、化学、生物学、健康科学和工程领域的应用。

• 批准号: 1039987
• 负责人: David Lederman
• 金额: $ 46.84万
• 依托单位: West Virginia University Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1039987&HistoricalAwards=false
• 关键词: MRI; Acquisition; Pulsed; Laser; Deposition

Technical Summary: This award enables West Virginia University to acquire a pulsed laser deposition (PLD) system to grow a variety of oxide thin films, multilayers, and nanostructures with applications in physics, chemistry, biology, engineering, and health sciences. The PLD system will be used to study the magnetoelectronic properties of multiferroic oxide films on polar semiconductors, the effects of tunneling through active ferroelectric junctions, the fabrication of novel reversible biosensors, new photovoltaic and photocatalysis devices, coatings for biomedical applications, and solid oxide fuel cell materials, among other projects. PLD is recognized as an efficient way of growing nanostructures with desired stoichiometry, but there is presently no PLD system at West Virginia University. The instrument will complement existing sputtering and molecular beam epitaxy growth facilities. The system will not only grow oxides using laser ablation deposition, but will also be able to ablate target material using electron beams, for materials that cannot be ablated with the laser, and will include two sputtering guns for deposition of metals. Additional functionality will be provided by analyzing the x-ray fluorescence emitted by the reflection high energy electron diffraction (RHEED) gun to provide in-situ structural and stoichiometric information. The PLD system will be made available to a large number of students, postdocs, and faculty, both at WVU and at other universities, and to private companies in the region, by incorporating the instrument into the WVNano Initiative's Shared Facilities. The instrument will also tie into the WVNano Initiative's undergraduate and graduate student research, education, and outreach programs that target a large proportion (greater than 50%) of underrepresented minorities and women from the State of WV and the Appalachian region. Because users are trained to operate the WVNano instruments, skills useful for the students' future careers will be developed. The research enabled by the instrument will have impacts the regional, national, and international levels because of collaborations with external investigators.Layman Summary: Pulsed laser deposition (PLD) is a versatile technique designed to fabricate nanoscale structures with high chemical and structural precision. When combined with other advanced fabrication and diagnostic tools, PLD can be a powerful tool with a wide-range of research and technology applications. Because there no such system currently exists at West Virginia University, the instrument will allow researchers to pursue new avenues that will have a significant impact on the development of future energy and health care technology. In particular, the research enabled by the instrument will result in more energy-efficient electronic devices, smaller and more reliable data storage devices, biomolecular sensors for real-time monitoring, better coatings for biomedical implants, improved solar energy conversion devices, and more efficient fuel cells. The PLD system will be operated by the WVNano Initiative's shared facilities infrastructure at WVU which will make the instrument available to a large number of students, postdocs, and faculty, both at WVU and at other universities, and to private companies in the region. The instrument will also tie into the WVNano Initiative's undergraduate and graduate student research, education, and outreach programs that target a large proportion (greater than 50%) of underrepresented minorities and women from the State of WV and the Appalachian region. Because users are trained to operate the WVNano instruments, skills useful for the students' future careers will be developed. The research enabled by the instrument will have impacts at the regional, national, and international levels because of collaborations with external investigators.

技术摘要：该奖项使西弗吉尼亚大学能够获取脉冲激光沉积（PLD）系统，以种植各种氧化物薄膜，多层和纳米结构，并在物理，化学，生物学，工程和健康科学中应用。 PLD系统将用于研究极性氧化物膜在极性半导体上的磁性特性，通过活跃的铁电交叉隧道的影响，新型可逆生物传感器的制造，新的光伏和光电催化设备，生物相化应用程序的涂料和固体氧化物燃料材料以及其他项目。 PLD被认为是一种具有所需化学计量的纳米结构的有效方法，但目前西弗吉尼亚大学没有PLD系统。该仪器将补充现有的溅射和分子束外延生长设施。该系统不仅将使用激光消融沉积生长氧化物，而且还将能够使用电子束对无法用激光消融的材料烧蚀目标材料，并包括两个溅射枪以沉积金属。通过分析反射高能电子衍射（RHEED）枪发出的X射线荧光来提供其他功能，以提供原位结构和化学计量信息。 PLD系统将在WVU和其他大学的大量学生，博士后和教职员工以及该地区的私人公司中提供，通过将乐器纳入WVNANO倡议的共享设施中。该工具还将与WVNANO倡议的本科和研究生研究，教育和外展计划相吻合，这些计划针对来自WV和阿巴拉契亚州的大部分代表性少数群体和代表性不足的少数民族和妇女。由于用户接受了操作WVNANO仪器的培训，因此将开发对学生未来职业有用的技能。由于与外部研究人员的合作，该仪器对该仪器的研究将影响区域，国家和国际层面。Layman摘要：脉冲激光沉积（PLD）是一种多功能技术，旨在构建具有高化学和结构精确度的纳米级结构。当与其他高级制造和诊断工具结合使用时，PLD可以成为具有大量研究和技术应用的强大工具。由于西弗吉尼亚大学目前没有这种系统，因此该工具将允许研究人员追求新的途径，这些途径将对未来的能源和卫生保健技术的发展产生重大影响。特别是，该仪器启用的研究将导致更节能的电子设备，较小，更可靠的数据存储设备，用于实时监测的生物分子传感器，更好的生物医学植入物涂层，改善的太阳能转换设备以及更有效的燃料电池。 PLD系统将由WVNANO计划在WVU的共享设施基础设施运营，该设施将使WVU和其他大学的许多学生，博士后和教职员工以及该地区的私人公司提供该工具。该工具还将与WVNANO倡议的本科和研究生研究，教育和外展计划相吻合，这些计划针对来自WV和阿巴拉契亚州的大部分代表性少数群体和代表性不足的少数民族和妇女。由于用户接受了操作WVNANO仪器的培训，因此将开发对学生未来职业有用的技能。该仪器实现的研究将对区域，国家和国际层面产生影响，因为与外部调查人员合作。