CSUSB Center for Materials Science

在国家科学基金会的支持下，并响应材料基因组全球竞争力倡议，加州州立大学圣贝纳迪诺分校将建立一个材料科学中心，开发和研究新的有机铁电材料。虽然无机和有机聚合物铁电材料得到了广泛的应用，但有机单分子铁电材料具有优异的活性，在环境友好材料方面具有尚未开发的潜力。许多已知的铁电材料在应用方面都有缺点，例如成本、毒性或有限的电子性能。虽然应用不是该中心项目的主要目标，但计算模型和实验结果应该被证明是设计具有理想性能的材料的有价值的工具。科学价值：该中心由一个不同学科的研究团队组成，他们的集体目标是开发和研究新的有机铁电材料，同时加强合作机构之间积极的研究合作和人员交流。该中心系统地寻找新的有机铁电体依赖于三个不同领域的子项目团队：(1)理论和计算；(2)合成和结构；以及(3)实验研究。在理论/计算子项目中，将使用晶体数据库、第一性原理计算和基于经验的直觉来预测可能的候选者。合成/结构团队将制备有机化合物，生长薄膜，并探索晶体材料的多晶性行为。然后，实验研究小组将适当地通过实验确定铁电和相关的压电性，作为温度、压力、薄膜厚度和成分的函数。这些结果将在随后的迭代中被用来预测下一组铁电候选。更广泛的冲击铁电性及其与材料的压电性、热释电性、非线性和高介电常数等密切相关的性质，对非常广泛的领域产生了广泛的影响。这些领域包括：科学仪器、消费品、国防、医疗设备、能源收集、能源储存、机器人和航空航天。这些应用程序为经济和许多高科技工作带来了数十亿美元的收入。通过大量的应用，这项研究提供了一个很好的切入点来吸引、留住、鼓励和激励学生，包括代表性不足的学生。用更环保的有机材料取代不环保材料的潜力尤其吸引人，例如主要的压电性材料之一钛酸锆铅。学生将接受广泛的关于研究级仪器的培训，体验特定的计算程序，并在合成有机化学和一般实验室技术和程序方面获得实践经验。拟议的研究合作将进一步促进南加州大学和合作伙伴社区学院教师的专业发展。

With National Science Foundation support and in response to the Materials Genome Initiative for Global Competitiveness, California State University San Bernardino will establish a Center for Materials Science to develop and study new organic ferroelectric materials. Although inorganic and organic polymeric ferroelectric materials are widely used, organic single molecule ferroelectrics have untapped potential for environmentally friendly materials with superior activity. Many of the known ferroelectrics have shortcomings with regard to applications, such as cost, toxicity, or limited electronic properties. While applications are not the main goal of the Center project, the computational models and experimental results should prove to be valuable tools in designing materials with desirable properties.Scientific Merit: The Center consists of a disciplinarily diverse research team whose collective goals are to develop and study new organic ferroelectric materials, while at the same time strengthening active research collaborations and personnel exchange between partner institutions. The Center's systematic search for new organic ferroelectrics relies on subproject teams in three distinct areas: (1) Theory and Computation; (2) Synthesis and Structure; and (3) Experimental Investigation. In the theory/computation subproject, crystallographic databases, first principles computations, and experience-based intuition will be used to predict likely candidates. The synthesis/structure team will prepare organic compounds, grow thin films, and explore polymorphic behavior of the crystalline materials. The experimental investigation team will then determine ferroelectric and related piezoelectric properties experimentally, as a function of temperature, pressure, film thickness, and composition, as appropriate. These results will be utilized in subsequent iterations to predict the next set of ferroelectric candidates. Broader ImpactFerroelectricity and the closely related properties piezoelectricity, pyroelectricity, non-linear and high dielectric constant properties of materials have broad impacts on an extremely large range of areas. These include: scientific instrumentation, consumer products, national defense, medical devices, energy harvesting, energy storage, robotics, and aerospace. These applications represent billions of dollars to the economy and many high tech jobs. With its numerous applications, this research provides an excellent entry point to attract, then retain, encourage and motivate students, including underrepresented students. The potential for replacing environmentally unfriendly materials such as one of the leading piezoelectric, lead zirconium titanate, with more environmentally friendly organic materials should be particularly appealing. Students will receive a wide range of training on research grade instrumentation, experience with specific computational packages, and gain hands-on experience in synthetic organic chemistry and general laboratory techniques and procedures. The proposed research collaborations will further enhance the professional development of faculty at CSUSB and the partner community colleges.