ACT/SGER: "ON-THE-FLY" Materials Modification During Laser Direct-Write Deposition of Micro Power Sources

ACT/SGER：微电源激光直写沉积过程中的“即时”材料改性

• 批准号: 0346497
• 负责人: Craig Arnold
• 金额: $ 9.6万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-15 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0346497&HistoricalAwards=false
• 关键词: ACT; SGER; FLY; Materials; Modification

This project entitled "ON-THE-FLY" MATERIALS MODIFICATION DURING LASER DIRECT-WRITE DEPOSITION OF MICROPOWER SOURCES addresses innovative approachs to the rapid processing and optimization of materials for micropower sources. A recognized need for miniaturized power sources exists in national security applications to provide integrated energy for low observable and small autonomous devices that cannot be powered by commercially available batteries or fuel cells. However, the techniques currently available to produce such small power sources require secondary processing such as high temperatures or pressures that can be detrimental to the sensitive materials used in many microdevices. In this project, a laser interacts with the microbattery material as it flies toward the substrate thus modifying its properties and reducing the need for secondary processing. The fundamental material response is studied in order to understand and control the structural and electrochemical properties. This study not only enhances the basic understanding of laser-material interactions, but also may revolutionize the use of laser processing for small electrochemical devices. Students with diverse interests and backgrounds in chemistry, physics, engineering and materials science will all be involved and educated through this truly interdisciplinary laser-based technique. The results obtained will be disseminated to provide researchers in a variety of disciplines with important new opportunities and techniques for microdevice development.%%%Innovative approaches to the processing and optimization of materials for micropower sources is of high interest for device fabrication for applications such as remote weather sensing, implantable microdevices, or bio-analytical microdevices. Laser direct-write methods are being developed and used to deposit patterns of microbattery and micro-ultracapacitor materials on various substrates under ambient conditions. The influence of the incident laser as well as secondary laser irradiation is studied and exploited in order to modify the material "on the fly" (OTF) during deposition. For example, in this project, hydrous ruthenium oxide ink will be transferred with varying incident laser energy and duration as well as secondary laser irradiation. The fundamental issues of laser interactions with the moving droplets of multiphase material are probed through structural and electrochemical characterization on the deposited films. By removing the need for pre- and post- processing, the substrates remain at ambient temperatures thereby enabling the use of novel low-temperature substrates such as flexible plastics or biological platforms for device development. OTF processing has the potential to rapidly prototype unique structures and chemistries that can transform the field of micropower and micro-sensor development. The interdisciplinary nature of this study involves chemistry, physics, engineering, and materials science and educates students with diverse interests and backgrounds in this new laser-based technique. The results obtained will be disseminated to provide researchers in a variety of disciplines with important new opportunities and techniques for microdevice development. This project is supported jointly by the Office of Multidisciplinary Activities and the Division of Materials Research, Directorate for Mathematical and Physical Sciences.

该项目的标题为“微型电源的激光直接写入”期间的“即时”材料修饰，探讨了微型源材料快速处理和优化的创新方法。在国家安全应用中，存在公认的对小型电源的需求，以为低观测和小型自主设备提供综合能量，这些设备无法通过市售的电池或燃料电池提供动力。但是，目前可用于生产此类小功率来源的技术需要辅助处理，例如高温或压力，这些处理可能不利于许多微型通信中使用的敏感材料。 在这个项目中，激光与微生物材料相互作用，因为它飞向底物，从而改变了其性质并减少了对二次处理的需求。 研究了基本材料响应，以了解和控制结构和电化学特性。这项研究不仅增强了对激光材料相互作用的基本理解，而且还可能彻底改变了将激光处理用于小型电化学设备的使用。 具有化学，物理，工程和材料科学的各种兴趣和背景的学生将通过这项真正的跨学科激光技术参与和教育。 获得的结果将被散布，以便为各种学科的研究人员提供重要的新机遇和微电位开发的技术。%%%%创新的方法来处理和优化微型源材料，对于远程天气，可植入的微型电视，可植入的微型电视，或生物 ​​- 纳入的微型电视台，对于远程天气制造的设备制造材料非常感兴趣。 正在开发和用于在环境条件下在各种底物上沉积微生物和微硫酸盐胶质材料的模式。 研究并利用了入射激光和次级激光照射的影响，以在沉积过程中修改“飞行”（OTF）的材料。 例如，在这个项目中，含液压二氧化物墨水将通过不同的入射激光能量和持续时间以及次级激光照射转移。 激光相互作用与多相材料的移动液滴的基本问题是通过沉积膜上的结构和电化学表征探测的。 通过消除对加工前后的需求，底物保持在环境温度下，从而可以使用新型的低温底物，例如柔性塑料或用于设备开发的生物平台。 OTF加工具有快速原型的独特结构和化学物质的潜力，可以改变微型和微传感器的发育领域。 这项研究的跨学科性质涉及化学，物理，工程和材料科学，并在这项新的基于激光的技术中对具有多种兴趣和背景的学生进行教育。 获得的结果将被传播，以为研究人员提供各种学科的研究人员，并为微电位开发带来重要的新机会和技术。该项目由多学科活动办公室和材料研究部共同支持，数学和物理科学局。