MRI: Acquisition of Transient Absorption Spectrometer for Multidisciplinary Research in Chemistry, Materials Science and Solar Energy Conversion

MRI：采购瞬态吸收光谱仪，用于化学、材料科学和太阳能转换的多学科研究

• 批准号: 1428633
• 负责人: Elizabeth Young
• 金额: $ 39.99万
• 依托单位: Amherst College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1428633&HistoricalAwards=false
• 关键词: MRI; Acquisition; Transient; Absorption; Spectrometer

With this award from the Major Research Instrumentation Program (MRI) and support from the Chemistry Research Instrumentation Program (CRIF), Professor Elizabeth Young from Amherst College and colleagues Alexi Arango (Mount Holyoke), Michael Barnes (University of Massachussetts-Amherst) and Sankaran Thayumanavan (University of Massachussetts-Amherst) will acquire a transient absorption spectrometer with a femtosecond Ti:sapphire amplifier system for a five-college consortium (Amherst College, Mount Holyoke College, Smith College, Hampshire Colleges and University of Massachusetts-Amherst). In general, tunable Ti:sapphire lasers that emit red and near-infrared light are used to irradiate a substance to investigate how they respond to short energy pulses. This provides information on the molecular structure and interactions between atoms. The ultrafast (femtosecond) methods allow study of important biological mechanisms such as the charge transfer dynamics in photosynthesis reaction centers that have important implications in how plants utilize solar energy to produce food.This award will enhance research and education at all levels, especially in areas such as (a) investigation of charge separation (CS) and recombination (CR) dynamics in organic photovoltaic materials; (b) studys of covalently-linked donor-acceptor (D-A) molecules based on BODIPY photooxidant and CS and CR in thin-film bilayer photovoltaic assemblies; and (c) studies of exciton dynamics in crystalline and semicrystalline polymer aggregates.

凭借重大研究仪器计划 (MRI) 的奖项和化学研究仪器计划 (CRIF) 的支持，阿默斯特学院的 Elizabeth Young 教授及其同事 Alexi Arango（霍利奥克山）、Michael Barnes（马萨诸塞大学阿默斯特分校）和 Sankaran Thayumanavan（马萨诸塞大学阿默斯特分校）将获得一台飞秒瞬态吸收光谱仪 用于五所学院联盟（阿默斯特学院、曼荷莲学院、史密斯学院、汉普郡学院和马萨诸塞大学阿默斯特分校）的钛蓝宝石放大器系统。一般来说，发射红光和近红外光的可调谐钛宝石激光器用于照射物质，以研究它们如何响应短能量脉冲。这提供了有关分子结构和原子之间相互作用的信息。超快（飞秒）方法可以研究重要的生物机制，例如光合作用反应中心的电荷转移动力学，这对植物如何利用太阳能生产食物具有重要意义。该奖项将加强各级的研究和教育，特别是在以下领域：（a）有机光伏材料中电荷分离（CS）和复合（CR）动力学的研究； (b) 基于 BODIPY 光氧化剂以及薄膜双层光伏组件中的 CS 和 CR 的共价连接供体-受体 (D-A) 分子的研究； (c) 结晶和半结晶聚合物聚集体中激子动力学的研究。