MRI: Acquisition of an FTIR spectrometer with optical cryostat for studying novel semiconductors, and ceramic and organic thin films

MRI：购买带有光学低温恒温器的 FTIR 光谱仪，用于研究新型半导体、陶瓷和有机薄膜

• 批准号: 1625882
• 负责人: Catalin Martin
• 金额: $ 15.11万
• 依托单位: Ramapo College of New Jersey
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-15 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1625882&HistoricalAwards=false
• 关键词: MRI; Acquisition; FTIR; spectrometer; optical

Through the acquisition of a Fourier Transform Infrared (FTIR) Spectrometer with extended spectral ranges and optical cryostat, this Major Research Instrumentation (MRI) award supports and enhances the research and educational capabilities at Ramapo College of New Jersey (RCNJ), a predominantly undergraduate institution. The instrument will enable several research activities pursued by one tenure-track and one tenured faculty at RCNJ. These activities include optical spectroscopy studies of: (a) spintronics materials, aimed at manipulating the spin of electrons in technological applications such as high-speed electronics, high volume storage or quantum computing; (b) hard coating ceramic thin films for use in space and nuclear applications; and (c) monolayer thin films of functional polymers, which play an important role in different technologies, including liquid-liquid extraction, stabilization of emulsions, and formation of supramolecular structures by self-assembly. The FTIR spectrometer will also provide research and training opportunities for a significant number of undergraduate students majoring in engineering physics, chemistry, biochemistry and biology, will increase the enrollment in the Research Honors course supported by the college, and will attract more undergraduate students in science and engineering.Measurements of optical reflectance (and/or transmittance) over a wide spectral range (from THz to VIS/UV) allows extraction of optical properties such as dielectric function, optical conductivity, loss function, refractive index, and extinction coefficient. In turn, these optical parameters provide critical insight into the electronic band structure and electronic transport properties, as well as into the chemical structure and lattice dynamics of materials. The FTIR spectrometer, with additional capabilities, will enable several research activities, including: (a) temperature dependent optical spectroscopy on single crystals of bulk Dirac fermions and bulk Rashba semiconductors. The goals are to advance the understanding of the origin of bulk Dirac band dispersion, and to provide a reliable experimental procedure for determining the bulk Rashba parameters in noncentrosymmetric semiconductors with strong spin-orbit coupling; (b) effects of ion-irradiation on hard coatings of ceramic thin films. This research aims to utilize optical spectroscopy as a non-destructive tool for assessing the effects of irradiation on crystal and chemical structures of ceramic thin films; (c) direct structural measurements of the orientation of functional groups in polymer films. The main goal is to further the understanding of the structure and orientation of polymers and proteins in mixed monolayer films.

通过获取具有扩展光谱范围和光学低温恒定的傅立叶变换红外（FTIR）光谱仪，这项主要的研究仪器（MRI）奖支持并增强了新泽西州拉马波学院（RCNJ）的研究和教育能力，这是一个巨大的研究生机构。该工具将实现RCNJ的一项任期和一名终身教师从事的几项研究活动。这些活动包括：（a）旋转三位型材料的光谱研究，旨在操纵电子应用中电子的自旋，例如高速电子，高量存储或量子计算； （b）用于空间和核应用中的硬涂层陶瓷薄膜； （c）功能性聚合物的单层薄膜，它们在不同技术中起重要作用，包括液 - 液体提取，乳液的稳定以及通过自组装形成超分子结构。 FTIR光谱仪还将为主修工程物理学，化学，生物化学和生物学专业的大量本科生提供研究和培训机会诸如介电函数，光导率，损耗函数，折射率和灭绝系数之类的特性。反过来，这些光学参数提供了对电子带结构和电子传输特性以及材料的化学结构和晶格动力学的关键见解。具有其他功能的FTIR光谱仪将实现多项研究活动，包括：（a）在散装零食费米子和散装散装Rashba半导体的单晶上依赖温度的光谱。目标是促进对散装零族带分散的起源的理解，并提供可靠的实验程序，以确定具有强旋转轨耦合的非中心对称半导体中的散装RASHBA参数； （b）离子辐照对陶瓷薄膜硬涂层的影响。这项研究旨在利用光谱法作为评估辐射对陶瓷薄膜晶体和化学结构的影响的非破坏性工具。 （c）聚合物膜中官能团方向的直接结构测量。主要目标是进一步理解混合单层膜中聚合物和蛋白质的结构和方向。