Purchase of an Ultraviolet-Visible-Near-Infrared Spectrophotometer for Reflectance Spectroscopy

9802943Stiegman该奖项为佛罗里达州立大学化学系购买新的紫外可见近红外分光光度计提供部分支持。这台分光光度计将支持该部门几名外部资助的研究人员的研究活动，并将提供他们目前无法提供的基本测量能力。具体地说，该仪器将配备为在漫反射和镜面收集模式下执行高分辨率反射光谱。这种能力对于研究人员来说是至关重要的，他们的研究重点是固态材料，而这些材料不适合常规的透射式测量。将获得的仪器将是一种在光谱的UV-VIS-NIR区域工作的新的分光光度计。该仪器将配备一个积分球和中心安装的样品支架，用于收集漫反射或总(漫反射+镜面)反射光。它还将配备可变角度相对镜面反射和掠角相对镜面反射样品夹。这些能力将有助于测量扩散粉末样品的电子光谱，确定半导体材料的带隙和气相沉积薄膜的厚度。它还将用于测量聚合物多层膜和金-硫醇自组装单分子膜的光谱性质。

9802943StiegmanThis award provides partial support for the acquisition of a new Ultraviolet-Visible-Near Infrared spectrophotometer for the Department of Chemistry at Florida State University. This spectrophotometer will support the research activities of several extramurally funded researchers in the department and will provide essential measurement capabilities not currently available to them. Specifically, this instrument will be equipped to perform high-resolution reflectance spectroscopy in both diffuse and specular collection modes. This capability is essential for investigators whose research focuses on solid-state materials which are not amenable to routine transmission-mode measurements.The instrumentation to be acquired will be a new spectrophotometer operating in the UV-Vis-NIR region of the spectrum. This instrument will be equipped with an integrating sphere with center mount sample holders for collecting diffuse or total (diffuse + specular) reflected light. It will also be accessorized with variable-angle relative specular and grazing-angle relative specular sample holders. These capabilities will facilitate the measurement of electronic spectra of diffuse powdered samples, the determination of band-gaps of semiconductor materials and the thickness of vapor-deposited thin films. It will also be used to measure the spectroscopic properties of polymer multilayers and gold-thiol self-assembled monolayers.%%%***