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Designing caps for colloidal Au nanoparticles
Chemical Science ( IF 7.6 ) Pub Date : 2021-1-20 , DOI: 10.1039/d0sc05780k Xiaoli Tian 1 , Jianpeng Zong 1 , Yusai Zhou 1 , Dapeng Chen 2 , Jia Jia 1 , Shuaibin Li 1 , Xiaochen Dong 2, 3 , Yuhua Feng 1 , Hongyu Chen 1
Chemical Science ( IF 7.6 ) Pub Date : 2021-1-20 , DOI: 10.1039/d0sc05780k Xiaoli Tian 1 , Jianpeng Zong 1 , Yusai Zhou 1 , Dapeng Chen 2 , Jia Jia 1 , Shuaibin Li 1 , Xiaochen Dong 2, 3 , Yuhua Feng 1 , Hongyu Chen 1
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The plasmonic property of a nanostructure is highly dependent on its morphology, but there are few methods for appending a domain as the “functional group” or modifier. As a means of modulating plasmonic properties, we create and modulate Au hats on Au nanoparticles, including mortarboards, beret hats, helmets, crowns, antler hats and antenna hats. The structural control arises from the active surface growth as a result of dynamic competition between ligand absorption and metal deposition. It allows the continuous tuning of hat morphologies, from the facet-controlled growth of mortarboards, to the spreading-favored growth of beret hats and helmets, and to the vertical growth of pillars in crowns, antler hats and antenna hats. Among these plasmonic nanostructures, the mortarboards show excellent SERS enhancement of 8.1 × 105, which is among the best in colloidal nanostructures; and the antler hats show the photothermal conversion efficiency of 66.2%, which compares favorably with the literature reports.
中文翻译：
设计胶体金纳米颗粒帽
纳米结构的等离子体特性高度依赖于其形态，但很少有方法可以附加域作为“官能团”或修饰剂。作为调节等离子体特性的一种手段，我们在金纳米粒子上创建和调节金帽子，包括学位帽、贝雷帽、头盔、王冠、鹿角帽和天线帽。结构控制源于配体吸收和金属沉积之间动态竞争导致的活性表面生长。它允许不断调整帽子的形态，从学位帽的刻面控制生长，到贝雷帽和头盔的扩散生长，再到王冠、鹿角帽和天线帽中柱子的垂直生长。在这些等离子体纳米结构中，学位帽表现出优异的SERS增强效果，达到8.1×10 5，在胶体纳米结构中名列前茅；鹿角帽的光热转换效率为66.2%，与文献报道相比毫不逊色。
更新日期：2021-01-27
中文翻译：
设计胶体金纳米颗粒帽
纳米结构的等离子体特性高度依赖于其形态，但很少有方法可以附加域作为“官能团”或修饰剂。作为调节等离子体特性的一种手段，我们在金纳米粒子上创建和调节金帽子，包括学位帽、贝雷帽、头盔、王冠、鹿角帽和天线帽。结构控制源于配体吸收和金属沉积之间动态竞争导致的活性表面生长。它允许不断调整帽子的形态，从学位帽的刻面控制生长，到贝雷帽和头盔的扩散生长，再到王冠、鹿角帽和天线帽中柱子的垂直生长。在这些等离子体纳米结构中，学位帽表现出优异的SERS增强效果，达到8.1×10 5，在胶体纳米结构中名列前茅；鹿角帽的光热转换效率为66.2%，与文献报道相比毫不逊色。
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