Charge Transport, Plasmon Properties in the Infrared and Thermal Stability of Metal Nanowires

金属纳米线的电荷传输、红外等离子体特性和热稳定性

• 批准号: 5429295
• 负责人: Dr. Gerhard Fahsold
• 金额: --
• 依托单位: Kirchhoff-Institut für Physik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2004
• 资助国家: 德国
• 起止时间: 2003-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5429295?language=en
• 关键词: Charge; Transport; Plasmon; Properties; Infrared

The transport of free electrons in metal nanowires (MNW) is of interest for microelectronic applications as the resistive generation of heat consumes electrical energy and can cause overheating in future integrated-circuit architectures. Any engineering of MNW interconnects needs specific knowledge on the influence of temperature, size and crystalline structure on the charge transport. We want to generate such specific knowledge by performing infrared-spectroscopic experiments. Resonant excitation of free charge carriers in metal nanoparticles has numerous applications in technology and life science. MNW of few micron lengths should show plasmon resonances in the infrared range. These resonances promise near-future applications in position-sensitive vibrational spectroscopy and a pathway to a tailoring and a metrology of MNW. We aim at giving experimental evidence for MNW plasmons in the infrared range and at a demonstation how sharpness and frequency of these plasmons can be adjusted for a specific functionalization of MNW. A thermal instability of a MNW is of high technological relevance. It can cause device failure, but on the other hand, it can be utilized for a nanostructure tailoring. We intend to investigate the time and temperature dependence of such instabilities under various conditions to open pathways for their controlled utilization.

自由电子在金属纳米线（MNW）中的传输对于微电子应用是感兴趣的，因为热的电阻生成消耗电能并且可能在未来的集成电路架构中引起过热。MNW互连的任何工程都需要关于温度、尺寸和晶体结构对电荷传输的影响的特定知识。我们希望通过红外光谱实验来获得这些特定的知识。金属纳米粒子中自由载流子的共振激发在技术和生命科学中有许多应用。几微米长度的MNW应在红外范围内显示等离子体共振。这些共振有望在不久的将来应用于位置敏感的振动光谱和途径的剪裁和计量的MNW。我们的目标是在红外范围内的MNW等离子体激元的实验证据，并在演示如何的锐度和这些等离子体激元的频率可以调整为一个特定的功能化的MNW。MNW的热不稳定性具有高技术相关性。它可能导致器件故障，但另一方面，它可以用于纳米结构剪裁。我们打算调查的时间和温度依赖性的不稳定性在各种条件下打开的途径，他们的控制利用。