Nondestructive Approach for Additive Nanomanufacturing of Metallic Nanostructures in the Air
Nondestructive Approach for Additive Nanomanufacturing of Metallic Nanostructures in the Air
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DOI：
10.1021/acsomega.7b01907
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发表时间：
2018-01-01
期刊：
影响因子：
4.1
通讯作者：
Zhao, Chenglong
中科院分区：
文献类型：
--
作者：
Alam, Md Shah;Zhao, Chenglong
本文研究了在激光照射下，金纳米颗粒(GNPs)从软衬底快速释放和转移到另一衬底的机理。用连续波激光加热软衬底上的GNPs会导致衬底的快速热膨胀，这可以用来选择性地释放GNPs并将其放置在另一表面上。用这种方法成功地制备了面内和面外纳米结构。这种快速释放-放置工艺可以用于在环境条件下对金属纳米结构进行加法非制造，这为负担得起的纳米制造铺平了道路，并使其在纳米光子学、超灵敏传感和非线性等离子体学中得到了广泛的应用。
In this article, a mechanism for quick release and transfer of gold nanoparticles (GNPs) from a soft substrate to another substrate under laser illumination is investigated. The heating of GNPs on a soft substrate with a continuous-wave laser causes a rapid thermal expansion of the substrate, which can be used to selectively release and place GNPs onto another surface. In-plane and out-of-plane nanostructures are successfully fabricated using this method. This rapid release-and-place process can be used for additive nonmanufacturing of metallic nanostructures under ambient conditions, which paves a way for affordable nanomanufacturing and enables a wide variety of applications in nanophotonics, ultrasensitive sensing, and nonlinear plasmonics.