Synthesis, Characterization, and Physical Properties of Metal Chalcogenides

金属硫属化物的合成、表征和物理性质

• 批准号: 0096676
• 负责人: James Ibers
• 金额: $ 47.94万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-01 至 2004-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0096676&HistoricalAwards=false
• 关键词: Synthesis; Characterization; Physical; Properties; Metal

The goal of this project is to synthesize, characterize, and measure the physical properties of solid-state metal chalcogenides (a chalcogenide being a compound that contains sulfur, selenium, or tellurium). Metal chalcogenides show a very rich chemistry that is fundamentally different and much less explored than that of the oxides. Areas to be explored include ternary transition-metal/rare-earth-metal/chalcogenides, chalcogenide substitutional chemistry, rare-earth oxychalcogenides, rare-earth/copper/telluride derivatives and thermoelectric behavior, and thorium and uranium chalcogenides. Characterization of the new materials will include structural determinations by single-crystal X-ray methods and the measurement of physical properties to include electrical conductivity, thermopower, and magnetic susceptibility. The ultimate goal of this research project is to make the chemistry of solid-state materials more predictable.%%%The synthesis of new classes of solid-state materials exhibiting novel physical properties such as electronic, optical, thermoelectric, and magnetic together with correlating these physical properties with composition and structure are priority areas of high interest to industry, and students trained in these areas are very competitive in the job market.

该项目的目标是合成、表征和测量固态金属硫族化合物（硫族化合物是一种含有硫、硒或碲的化合物）的物理性质。金属硫族化合物显示出一种非常丰富的化学性质，它与氧化物的化学性质有着根本的不同，而且研究得很少。研究领域包括三元过渡金属/稀土金属/硫族化合物、硫族化合物取代化学、稀土氧硫族化合物、稀土/铜/碲化物衍生物和热电行为、钍和铀硫族化合物。新材料的表征将包括单晶x射线方法的结构测定和物理性质的测量，包括电导率、热功率和磁化率。这个研究项目的最终目标是使固态材料的化学反应更容易预测。新型固态材料的合成具有新颖的物理特性，如电子、光学、热电和磁性，并将这些物理特性与成分和结构相关联，这是工业界高度感兴趣的优先领域，在这些领域受过培训的学生在就业市场上非常有竞争力。