A cast seed-mediated growth method for preparing gold nanoparticle-attached indium tin oxide surfaces
A cast seed-mediated growth method for preparing gold nanoparticle-attached indium tin oxide surfaces
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DOI：
10.1016/j.apsusc.2006.04.033
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发表时间：
2006-12
影响因子：
6.7
通讯作者：
A. Umar;M. Oyama
中科院分区：
文献类型：
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作者：
A. Umar;M. Oyama
报道了一种将金纳米粒子直接附着在氧化铟锡（ITO）表面的有效方法。附件进行了使用铸造种子介导的生长方法，这是从我们以前的种子介导的生长方法修订。发现具有三个循环的含有Au纳米晶种颗粒的晶种溶液的滴加和在30°C下的蒸发，随后在含有HAuCl 4、十六烷基三甲基溴化铵（CTAB）和抗坏血酸的生长溶液中处理的浇铸晶种适合于制备具有较高密度和较窄尺寸分布的附接有Au NP的ITO表面。10个循环的铸晶形成连接或网状纳米结构的金纳米粒子，虽然光学性质是从分散的金纳米粒子附着的ITO的不同。本发明的浇铸引晶方法提供了一种简便且有用的策略，以在不使用某些有机粘合剂分子的情况下将AuNP附着在表面上。
An effective approach to attach gold nanoparticles (AuNPs) directly on indium tin oxide (ITO) surface with higher density is reported. The attachment was carried out using a cast seed-mediated growth method, which was revised from our previous seed-mediated growth approach. The cast seeding with three-cycles of the drop of the seed solution containing Au nano-seed particles and the evaporation at 30°C followed by the treatment in the growth solution containing HAuCl4, cetyltrimethylammonium bromide (CTAB) and ascorbic acid was found to be suitable to prepare the AuNPs attached ITO surfaces having higher density and narrower size distribution. The 10-cycles cast seeding formed the connected or networked nanostructures of AuNPs, though the optical properties were different from those of the dispersed AuNP-attached ITO. The present cast seeding approach provides a facile and useful strategy to attach AuNPs on the surface without the use of certain organic binder molecules.