Upgrade of a Picosecond UV-vis-NIR Pump-Probe Transient Absorption Spectrometer

皮秒紫外-可见-近红外泵浦探针瞬态吸收光谱仪的升级

• 批准号: 0091666
• 负责人: William Jones
• 金额: $ 12.25万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-02-15 至 2005-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0091666&HistoricalAwards=false
• 关键词: Upgrade; Picosecond; UV; vis; NIR

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at the University of Rochester will upgrade a picosecond UV-vis-NIR pump-probe transient absorption spectrometer. This equipment will enhance research in the following areas: 1) quantum amplified isomerization; 2) mechanistic investigations of group 14 cation radical reactions; 3) nature and decay dynamics of photogenerated interchain species in conjugated polymers; 4) decay kinetics of ion radical pairs to determine return electron transfer rate constants; 5) studies of charge transfer processes in platinum diimine complexes; and 6) carbon nanotube electronics and interface vibrational dynamics.A picosecond laser provides ultrafast pulses of coherent visible or infrared light, which enables researchers to obtain important information about fast occurring chemical reactions. Its use may enable breakthroughs in our understanding of the properties of reactive and nonreactive molecules. These studies will have an impact in a number of areas including polymer chemistry.

凭借化学研究仪器和设施（CRIF）计划的这一奖项，罗切斯特大学化学系将升级皮秒紫外可见近红外泵浦探测瞬态吸收光谱仪。该设备将加强以下领域的研究：⑴量子放大异构化; ⑵第14族阳离子自由基反应的机理研究; ⑶共轭聚合物中光生链间物种的性质和衰变动力学; ⑷离子自由基对的衰变动力学，以确定返回电子转移速率常数; ⑸铂二亚胺络合物中电荷转移过程的研究; 6）碳纳米管电子学和界面振动动力学。皮秒激光器提供相干可见光或红外光的超快脉冲，这使研究人员能够获得关于快速发生的化学反应的重要信息。 它的使用可能使我们对反应性和非反应性分子性质的理解取得突破。 这些研究将对包括聚合物化学在内的许多领域产生影响。