New Frontiers in Multifunctional Materials: Design, Synthesis and Nanostructure-Property Relations

多功能材料的新前沿：设计、合成和纳米结构-性能关系

• 批准号: RGPIN-2017-06915
• 负责人: Ye, ZuoGuang
• 金额: $ 6.56万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=712497
• 关键词: New; Frontiers; Multifunctional; Materials; Design

Designing and discovering novel materials plays a crucial role in the advancement of technology. Of particular interest is the class of multifunctional materials that exhibit interesting properties including dielectric, piezoelectric, ferroelectric, and magnetoelectric. These materials are highly demanded in a vast range of industrial and commercial applications and are applicable to devices from sonars to solar panels. This proposal is aimed to take on the emerging challenges in this field. The overall objective of our research program is to design, synthesize and characterize new inorganic solid state materials which exhibit multifunctional properties, and to provide a better understanding of the relationship between inhomogeneous nanostructures and enhanced macroscopic properties. The technical aspect of our program include: i) synthesis of new materials that exhibit inter-couplings between key physical quantities, such as electro-mechanical, magneto-electric, and electro-caloric effects; ii) development of high Curie-temperature (Tc) and high-performance piezo-/ferroelectric materials; iii) preparation of environmentally friendly lead-ree piezo-/ferroelectric materials and hybrid perovskite halides with characteristics suitable to have them replace their lead-based counterparts in electromechanical transducers and optoelectronic devices; and lastly, iv) characterization of structures and physical properties of the materials synthesized in order to gain new insights into the relationship between crystal chemistry, nanostructure and multifunctional properties. This research program will advance functional materials science and engineering by applying novel crystal chemistry concepts to the design of new high performance multiferroic materials, by synthesizing the new materials using different approaches and techniques, and by characterizing the new material's structures and properties. In general, this research will enrich our knowledge in materials chemistry and crystal physics by providing a better understanding of the nanostructure property relations of complex functional materials. It will also explore and evaluate the potential applications of multifunctional materials in advanced technologies, such as energy harvesting, conversion and storage; smart sensing and actuating; high-density memory and micro-electronic devices for big data processing; high-resolution ultrasonic probes for improved medical imaging, diagnosis and therapy; and high-sensitivity and high-power sonar for underwater detection and communication. These efforts will contribute to the advancements and innovations in energy, environment, health, defense and standards of living. Another important aspect of this research program is to provide great opportunities for training highly qualified personnel through its interdisciplinary nature.

设计和发现新型材料在技术的发展中起着至关重要的作用。特别有趣的是一类多功能材料，这些材料表现出有趣的特性，包括电介质，压电，铁电和磁电。这些材料在广泛的工业和商业应用中高度要求，并且适用于从声纳到太阳能电池板的设备。该提案的目的是应对该领域的新兴挑战。 我们研究计划的总体目标是设计，合成和表征具有多功能性能的新的无机固态材料，并更好地理解对非均匀纳米结构与增强的宏观特性之间的关系。我们计划的技术方面包括：i）合成在关键物理量之间表现出相互偶联的新材料，例如电力机械，磁电磁和电 - 电平效应； ii）开发高咖喱温度（TC）和高性能压电/铁电材料； iii）制备具有环境友好的铅释放压电/铁电材料和混合钙钛矿卤化物的特征，适合于它们在机电传感器和光电设备中取代其基于铅的基于铅的对应物；最后，iv）表征合成的材料的结构和物理特性，以便获得对晶体化学，纳米结构和多功能性能之间关系的新见解。 该研究计划将通过将新型的晶体化学概念应用于新的高性能多表色材料的设计，通过使用不同的方法和技术合成新材料，并通过表征新材料的结构和特性来推动功能材料科学和工程。通常，这项研究将通过更好地了解复杂功能材料的纳米结构性质关系来丰富我们在材料化学和晶体物理学方面的知识。它还将探索和评估多功能材料在高级技术中的潜在应用，例如能源收集，转换和存储；聪明的感测和驱动；用于大数据处理的高密度存储器和微电动设备；用于改进医学成像，诊断和治疗的高分辨率超声探针；以及用于水下检测和通信的高敏性和高功率声纳。这些努力将有助于能源，环境，健康，国防和生活水平的进步和创新。该研究计划的另一个重要方面是为通过其跨学科性质培训高素质的人员提供巨大的机会。