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

购买紫外-可见-近红外分光光度计用于反射光谱分析

• 批准号: 9802943
• 负责人: Albert Stiegman
• 金额: $ 5.16万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9802943&HistoricalAwards=false
• 关键词: Purchase; Ultraviolet; Visible; Near; Infrared

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.%%%***

9802943 Stiegman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。 该分光光度计将支持该部门的几个外部资助的研究人员的研究活动，并将提供他们目前无法获得的基本测量能力。 具体而言，该仪器将配备在漫射和镜面收集模式下执行高分辨率反射光谱。 这种能力对于那些研究重点是固态材料的研究人员来说是必不可少的，因为固态材料不适合常规的透射模式测量，所要购置的仪器将是一台在紫外-可见-近红外光谱区工作的新的分光光度计。 该仪器将配备一个积分球，中心安装样品架，用于收集漫射或总（漫射+镜面）反射光。 它还将配备可变角度相对镜面和掠射角相对镜面样品架。 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。 它也将用于测量聚合物多层膜和金硫醇自组装单层膜的光谱特性。%*