PFI-RP: Novel Alloy Materials and Device Designs for 5G Wireless Communications

该创新研究伙伴关系（PFI-RP）项目的更广泛影响/商业潜力通过开发新材料将无线通信设备的工作频率范围扩展到5G操作的下一阶段。更高的工作频率意味着更高的数据传输速率，但如今主导无线手机市场的紧凑、高效和低成本声学元件受到其核心材料基本特性的限制。 现有材料的当前替代品体积庞大，效率低下，并导致电池快速耗尽，在数据传输期间产生不可接受的热量。将这些声学元件扩展到6 - 10 GHz区域需要高通量筛选与协同设计方法相结合，以快速有效地开发具有可被新型器件设计和芯片制造快速利用的特性的新材料。该项目从非线性合金行为的基本材料概念出发，将这些组件扩展到新兴的5G通信频段。拟议的项目将解决如何使用我们最近开发的工具，从第一原理（包括多尺度化学有序）准确计算复杂合金声速的开放性科学问题。在这些工具的指导下，我们将利用高通量实验筛选能力来制造比现有选择具有更高声速的新型压电合金。这个过程将增加我们的理解充满活力的非平衡制造通过反应溅射和复杂的多阳离子和同时多阴离子合金的机电性能。这些新构思的具有增加的声速和降低的介电常数的压电体的开发和性能优化将被耦合到新的设备结构，以演示在6 GHz的工作频率的声谐振器。共同设计的新材料，表现出使属性和谐振器，可以利用这些属性将导致紧凑，低成本，高效率的滤波器的无线手机为6 GHz的操作。这个奖项反映了NSF的法定使命，并已被认为是值得的支持，通过评估使用基金会的知识价值和更广泛的影响审查标准。

The broader impact/commercial potential of this Partnerships for Innovation – Research Partnerships (PFI-RP) project extends the operational frequency range of wireless communication devices to the next stage of 5G operation by developing new materials. Higher operating frequencies mean higher data rates, but the compact, efficient, and low-cost acoustic components that dominate the wireless handset market today are limited by the fundamental properties of the materials at their core. The current alternatives to the existing materials are bulky, inefficient and lead to rapid battery drain with unacceptable heating during data transmission. Extending these acoustic components into the 6 – 10 GHz region requires a high throughput screening combined with co-design approach to rapidly and efficiently develop new materials with enabling properties that can be rapidly leveraged by novel device designs and chips manufacturing. This project builds from fundamental materials concepts of non-linear alloy behavior to extend these components into emerging 5G communication bands.The proposed project will address the open scientific question of how to accurately compute the speed of sound of complex alloys from first principles, including multi-scale chemical ordering, using tools that we have recently developed. Guided by such tools, we will leverage high throughput experimental screening capabilities to fabricate new piezoelectric alloys with higher acoustic velocities than existing options. This process will increase our understanding of the energetic non-equilibrium fabrication via reactive sputtering and electromechanical properties of complex multi-cation and simultaneously multi-anion alloys. Development and property optimization of these newly conceived piezoelectrics having increased acoustic velocity and reduced permittivity will be coupled to novel device structures to demonstrate acoustic resonators at 6 GHz operating frequencies. Co-design of the new materials that exhibit enabling properties and the resonators that can leverage said properties will lead to compact, low-cost, high efficiency filters for wireless handsets for 6 GHz operation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.