nano-fabrication based on plasmonic local heating

在本研究中，利用金属纳米结构上的局域表面等离子体激元的弛豫，研究了“纳米加热器”的概念，期望在纳米尺度上实现特定空间区域的局部加热。为了证明这一概念，已经检查了两种不同的模型反应：在100 ℃的胶体溶液中DNA去杂交和在200 ℃的H-末端Si（111）表面上Si-C键的形成。 此外，我们还研究了过渡金属纳米结构的等离子体共振特性，以实现更高温度的局部加热，结果清楚地表明，“纳米加热器”适用于热反应和贵金属化学合成方法的纳米制造。

In this study, a concept of "nano-heater" has been studied using relaxation of localized surface plasmons on metal nanostructures, which is expected to realize local heating of a specific spatial region at the nanoscale.To demonstrate the concept, two different model reactions have been examined: DNA dehybridization at 100 degree C in colloidal solution and Si-C bond formation at 200 degree C on H-terminated Si(111) surface. Moreover, plasmon resonance features of transition metal nanostructures have been studied to achieve higher temperature local heating.The results clearly show that the "nano-heater" is applicable for nano-fabrication using heat-reactions and noble chemical synthetic methods.