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.

通过收购具有扩展光谱范围和光学低温恒温器的傅里叶变换红外（FTIR）光谱仪，该主要研究仪器（MRI）奖支持并增强了新泽西拉马波学院（RCNJ）的研究和教育能力，该学院主要是本科院校。该仪器将使几个研究活动所追求的一个终身轨道和一个终身教职RCNJ。这些活动包括对以下方面的光学光谱学研究：（a）自旋电子学材料，目的是在高速电子学、大容量存储或量子计算等技术应用中操纵电子自旋;（B）用于空间和核应用的硬涂层陶瓷薄膜;和（c）功能聚合物的单层薄膜，其在不同的技术中起重要作用，包括液-液萃取，乳液的稳定，以及通过自组装形成超分子结构。FTIR光谱仪还将为工程物理、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，将增加学院支持的研究荣誉课程的入学人数，并将吸引更多的理工科本科生。光学反射率的测量在宽光谱范围（从THz到维斯/UV）上的光学特性（和/或透射率）允许提取光学特性，诸如介电函数、光学电导率、损耗函数、折射率和消光系数。反过来，这些光学参数提供了关键的洞察电子能带结构和电子输运性质，以及到材料的化学结构和晶格动力学。傅里叶变换红外光谱仪具有额外的能力，将能够进行几项研究活动，包括：（a）体狄拉克费米子和体Rashba半导体单晶的温度相关光谱学。我们的目标是推进体狄拉克带色散的起源的理解，并提供一个可靠的实验程序，用于确定体Rashba参数在非中心对称半导体与强自旋轨道耦合;（B）离子辐照陶瓷薄膜的硬涂层的影响。这项研究的目的是利用光学光谱作为一种非破坏性的工具，用于评估辐射对陶瓷薄膜的晶体和化学结构的影响;（c）聚合物薄膜中官能团取向的直接结构测量。主要目标是进一步了解混合单层膜中聚合物和蛋白质的结构和取向。