Solid State Chemistry of Chalcogenides for Materials Discovery

用于材料发现的硫族化物固态化学

基本信息

  • 批准号:
    1104965
  • 负责人:
  • 金额:
    $ 45万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2011
  • 资助国家:
    美国
  • 起止时间:
    2011-06-15 至 2015-05-31
  • 项目状态:
    已结题

项目摘要

TECHNICAL SUMMARYThe primary goals of this research supported by the Solid State and Materials Chemistry program are to discover and characterize new types of metal chalcogenide compounds and to develop and understand their structures, chemical bonding and physical properties. An important question of this synthesis program is whether we can guide the fundamental reaction chemistry occuring in salt fluxes at intermediate temperatures in order to suppress the formation of undesirable compounds and favor the crystallization of new ones. The project employs alkali metal polychalcogenide flux syntheses to afford materials containing condensed chalcogenide units. Well-defined building blocks are present in the flux reactions and their formation is guided by tuning the flux composition and temperature, which controls Lewis basicity and redox potential. In addition, the salt fluxes can sustain tunable dynamic equilibria that are important for the synthesis to be directed towards new metal chalcogenide materials. It is hypothesized that manipulation of these flux properties will allow the control of the synthetic routes toward a variety of new structures. The metals employed in this chemistry are primarily main group and rare earth metals and in select cases, transition metals. New materials of the chalcogenide class are expected with attractive chemical and physical properties such as ion-exchange, semiconductor (with a wide range of energy band gaps from 0.5-3.0 eV depending on structure and composition), metallic, phase-change and nonlinear optical properties (particularly very strong second harmonic generation in the infrared region). It is anticipated that many of the physical properties of the new materials will have significant potential for technological impact and further development in applications. NON-TECHNICAL SUMMARYSynthesis and crystal growth of new materials is increasingly recognized as an important underpinning of research that strongly impacts the physical sciences and thus programs such as the proposed one are both relevant and timely. Under this Solid State and Materials Chemistry funded program new chalcogenide materials are anticipated with useful chemical and physical properties such as ion-exchange, semiconductor (with a wide range of energy band gaps from 0.5-3.0 eV depending on structure and composition), metallic, phase-change and nonlinear optical properties (particularly very strong second harmonic generation in the infrared region). A wide variety of experimental characterization tools are employed in this project including single crystal and powder X-ray crystallography using in-house and synchrotron radiation, solid state optical, infrared and Raman spectroscopy, scanning and transmission electron microscopy, differential thermal analysis and scanning calorimetry, and measurements of electrical conductivity as well as optical second harmonic generation. It is anticipated that many of the physical properties of the new materials will have significant potential for technological impact and further development in applications. At a grassroots level, the solid state and materials chemistry community recognizes the grand challenge of developing rational materials discovery strategies. This project helps address this challenge by developing new synthesis methodologies. For the class of chalcogenides, a rational, science-driven foundation is set to extract maximum scientific and technological benefit. The specific focus is on training and teaching graduate students in solid state and materials chemistry who understand the importance of developing new materials as drivers for new technologies. The project provides important opportunities for graduate and undergraduate students to learn research investigative skills that are needed for contemporary materials chemistry research. The students are also exposed to a broad battery of physical property characterization tools. Student training in the synthesis and crystal growth of novel materials has a positive impact on our national competitiveness in key materials and addresses a growing national need. Students also benefit from high impact interdisciplinary collaborations. Finally, the broad dissemination of scientific results and knowledge through publication will enhance scientific understanding and hopefully stimulate further research activity elsewhere.
由固态和材料化学计划支持的这项研究的主要目标是发现和表征新型金属硫属化合物,并开发和理解它们的结构,化学键和物理性质。这个合成程序的一个重要问题是,我们是否可以指导在中间温度下盐熔剂中发生的基本反应化学,以抑制不需要的化合物的形成,并有利于新化合物的结晶。该项目采用碱金属多硫族化合物助熔剂合成,以提供含有缩合硫族化合物单元的材料。焊剂反应中存在明确的结构单元,它们的形成通过调节焊剂组成和温度来指导,这控制了刘易斯碱度和氧化还原电位。此外,盐通量可以维持可调的动态平衡,这对于合成新的金属硫属化物材料是重要的。据推测,这些通量属性的操纵将允许控制的合成路线走向各种新的结构。在这种化学中使用的金属主要是主族和稀土金属,在某些情况下是过渡金属。硫族化物类的新材料预期具有吸引人的化学和物理性质,例如离子交换、半导体(具有0.5-3.0 eV的宽范围的能带隙,取决于结构和组成)、金属、相变和非线性光学性质(特别是在红外区域中非常强的二次谐波产生)。预计新材料的许多物理特性将对技术影响和应用的进一步发展具有重大潜力。非技术总结新材料的合成和晶体生长越来越被认为是对物理科学产生强烈影响的研究的重要基础,因此,诸如所提出的计划既相关又及时。在这个固态和材料化学资助的计划下,预计新的硫属化物材料具有有用的化学和物理性质,如离子交换,半导体(根据结构和组成,具有0.5-3.0 eV的宽范围的能带隙),金属,相变和非线性光学性质(特别是在红外区域非常强的二次谐波产生)。在这个项目中采用了各种各样的实验表征工具,包括单晶和粉末X射线晶体学,使用内部和同步辐射,固态光学,红外和拉曼光谱,扫描和透射电子显微镜,差热分析和扫描量热法,以及光学二次谐波产生的电导率测量。预计新材料的许多物理特性将对技术影响和应用的进一步发展具有重大潜力。在基层,固态和材料化学界认识到制定合理的材料发现策略的巨大挑战。该项目通过开发新的综合方法帮助应对这一挑战。对于硫属化物类,建立了一个理性的、科学驱动的基础,以获取最大的科技效益。具体的重点是培养和教学研究生在固态和材料化学谁了解开发新材料作为新技术的驱动程序的重要性。该项目为研究生和本科生提供了学习当代材料化学研究所需的研究调查技能的重要机会。学生们还接触到广泛的物理特性表征工具。在新材料的合成和晶体生长的学生培训对我们在关键材料的国家竞争力产生了积极的影响,并解决了日益增长的国家需求。学生也受益于高影响力的跨学科合作。最后,通过出版广泛传播科学成果和知识将增强科学理解,并有望刺激其他地方的进一步研究活动。

项目成果

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Mercouri Kanatzidis其他文献

Photo-induced Polaronic Response of SnSe Probed by Ultrafast Multi-THz Spectroscopy
超快多太赫兹光谱探测 SnSe 的光致极化响应
Role of Stoichiometry in the Growth of Large Pb2P2Se6 Crystals for Nuclear Radiation Detection
化学计量在用于核辐射检测的大型 Pb2P2Se6 晶体生长中的作用
  • DOI:
    10.1021/acsphotonics.7b01119
  • 发表时间:
    2017-12
  • 期刊:
  • 影响因子:
    7
  • 作者:
    Yadong Xu;Xu Fu;Hongjian Zheng;Yihui He;Wenwen Lin;Kyle McCall;Zhifu Liu;Sanjib Das;Bruce Wessels;Mercouri Kanatzidis
  • 通讯作者:
    Mercouri Kanatzidis
Photoinduced Phase Change in SnSe Probed by Ultrafast Multi-THz Spectroscopy
超快多太赫兹光谱探测 SnSe 光致相变
The 2019 materials by design roadmap
  • DOI:
    10.1088/1361-6463/aad926
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
  • 作者:
    Kirstin Alberi;Marco Buongiorno Nardelli;Andriy Zakutayev;Lubos Mitas;Stefano Curtarolo;Anubhav Jain;Marco Fornari;Nicola Marzari;Ichiro Takeuchi;Martin L Green;Mercouri Kanatzidis;Mike F Toney;Sergiy Butenko;Bryce Meredig;Stephan Lany;Ursula Kattner;Albe
  • 通讯作者:
    Albe

Mercouri Kanatzidis的其他文献

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{{ truncateString('Mercouri Kanatzidis', 18)}}的其他基金

Defining Reaction Paths for Chalcogenide Materials Discovery
定义硫族化物材料发现的反应路径
  • 批准号:
    2305731
  • 财政年份:
    2023
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
Synthesis of Complex and Advanced Chalcogenide Materials
复杂和先进硫族化物材料的合成
  • 批准号:
    2003476
  • 财政年份:
    2020
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
MRI: Acquisition of A Single Crystal Diffractometer With A Silver Microsource and A Detector Optimized for Silver Radiation
MRI:获取带有银微源和针对银辐射优化的探测器的单晶衍射仪
  • 批准号:
    1920248
  • 财政年份:
    2019
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
EAGER: Enabling Quantum Leap: Driven Non-Equilibrium Room Temperature Quantum States
EAGER:实现量子飞跃:驱动非平衡室温量子态
  • 批准号:
    1838507
  • 财政年份:
    2018
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
Solid State Chemistry of Complex Chalcogenides
复杂硫属化物的固态化学
  • 批准号:
    1708254
  • 财政年份:
    2017
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
Synthesis and Properties of Complex Crystalline and Glassy Metal Chalcogenides
复杂晶态和玻璃态金属硫属化物的合成与性能
  • 批准号:
    1410169
  • 财政年份:
    2014
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
NSF/DOE Thermoelectrics Partnership, Collaborative Proposal: Project SEEBECK - Saving Energy Effectively By Engaging in Collaborative research and sharing Knowledge
NSF/DOE 热电伙伴关系,协作提案:SEEBECK 项目 - 通过参与协作研究和共享知识有效节约能源
  • 批准号:
    1048728
  • 财政年份:
    2011
  • 资助金额:
    $ 45万
  • 项目类别:
    Continuing Grant
ARI-MA: Design and Growth of High Density, Wide Band-Gap Semiconductor Materials
ARI-MA:高密度、宽带隙半导体材料的设计和生长
  • 批准号:
    0938810
  • 财政年份:
    2009
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant
Solid State Chemistry of Crystalline and Glassy Chalcogenides
晶体和玻璃态硫属化物的固态化学
  • 批准号:
    0801855
  • 财政年份:
    2008
  • 资助金额:
    $ 45万
  • 项目类别:
    Continuing Grant
2008 Gordon Research Conference on Solid State Chemistry, New London, NH, July 27 - August 1, 2008
2008 年戈登固态化学研究会议,新罕布什尔州新伦敦,2008 年 7 月 27 日至 8 月 1 日
  • 批准号:
    0803573
  • 财政年份:
    2008
  • 资助金额:
    $ 45万
  • 项目类别:
    Standard Grant

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