Nanopattern Manufacture By The Sintering Of Self-Assembled Nanoparticle Arrays; Sintering Studies of Lines, Rafts, and Metamaterials

通过烧结自组装纳米粒子阵列制造纳米图案；

• 批准号: 0457602
• 负责人: Christopher Kiely
• 金额: $ 40万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-05-01 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0457602&HistoricalAwards=false
• 关键词: Nanopattern; Manufacture; Sintering; Self; Assembled

This grant provides funding for a new nano-manufacturing method to form nanowires and complex nanopatterns. The method involves the controlled sintering (firing) of self-assembled arrays of ligand stabilized metal and ceramic nanoparticles. The aim is to establish a basic understanding of how (i) particle size, (ii) particle array configuration, (iii) particle composition (iv) substrate identity, and (v) ligand destabilization method affect the nature of the of the nanowire or nanopattern formed. Three basic nanoparticle types Au, Ag and g-Fe2O3, each fabricated with a well-defined range of different sizes (2-15nm), will be used as fundamental building blocks in this project. These constituents will then be self-assembled into single component raft and line structures, as well as some novel composite metamaterial structures. Experiments will involve in-situ observations of the sintering process in a transmission electron microscope as well as observations of the room temperature stability of the nanoparticle arrays.The most successful approaches to nanoscale manipulation and patterning have been based on electron beam lithography and scanning probe microscopy techniques. Unfortunately these methods are relatively expensive, serial in nature, and are not readily applicable to mass production of nanopatterns and nanowires. If this approach is successful, it will create an ability to reproducibly manufacture such nanostructures on a larger scale by simple and inexpensive chemical methods and is therefore of great practical importance, especially if the promised potential benefits of nanotechnology are to be taken up by industry and exploited in the next generation of consumer electronics, chemical sensing devices and magnetic recording media. The new nanofabrication techniques under investigation in this program have the potential to fulfill these latter criteria provided that the sintering processes occurring between individual nanoparticles in these self-assembled arrays can be controlled and understood.

这项拨款为一种新的纳米制造方法提供资金，以形成纳米线和复杂的纳米粒子。该方法涉及配体稳定的金属和陶瓷纳米颗粒自组装阵列的受控烧结（烧制）。 目的是建立对（i）颗粒尺寸、（ii）颗粒阵列配置、（iii）颗粒组成、（iv）衬底特性和（v）配体去稳定化方法如何影响所形成的纳米线或纳米图案的性质的基本理解。三种基本的纳米颗粒类型Au，Ag和g-Fe 2 O 3，每种都具有明确定义的不同尺寸范围（2- 15 nm），将用作该项目的基本构建块。然后，这些成分将自组装成单组分筏和线结构，以及一些新的复合超材料结构。 实验将包括在透射电子显微镜中原位观察烧结过程以及观察纳米颗粒阵列的室温稳定性。最成功的纳米级操作和图案化方法是基于电子束光刻和扫描探针显微镜技术。不幸的是，这些方法相对昂贵，本质上是连续的，并且不容易应用于纳米片和纳米线的大规模生产。如果这种方法是成功的，它将创建一个可重复地制造这样的纳米结构在更大的规模上通过简单和廉价的化学方法的能力，因此是非常实际的重要性，特别是如果纳米技术的承诺的潜在利益是由工业和利用在下一代的消费电子产品，化学传感设备和磁记录介质。该计划中正在研究的新纳米纤维技术有可能满足这些标准，前提是可以控制和理解这些自组装阵列中单个纳米颗粒之间发生的烧结过程。