Monopod, bipod, tripod, and tetrapod gold nanocrystals
Monopod, bipod, tripod, and tetrapod gold nanocrystals
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DOI：
10.1021/ja038927x
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发表时间：
2003-12-31
影响因子：
15
通讯作者：
Carroll, DL
中科院分区：
文献类型：
--
作者：
Chen, SH;Wang, ZL;Carroll, DL
在室温下通过简单的溶液相化学还原方法合成了多足金纳米晶体。观察到两种类型的结构不同的粒子，包括规则的三脚架，其位于其{111}平面上的基板上，以及十字形四脚架位于其{100}平面上。两种结构都有 10 nm 大小的豆荚，并沿 ⟨110⟩ 方向生长。已生产出各种形状的颗粒，包括蝌蚪状或泪滴状的独脚架，90°L形、180°I形和120°V形的两脚架，T形、Y形和正三角形的三脚架，以及十字形的四脚架。由于金属的高导电性，考虑到它们在未来纳米电路和纳米器件以及其他相关领域的“自下而上”自组装方法中互连的应用，这些分支结构非常有前途。
Multipod gold nanocrystals have been synthesized via a simple solution-phase chemical reduction method at room temperature. Two types of structurally different particles are observed, including the regular tripod, which lies on the substrate with its {111} plane, and the cross-like tetrapod that sits on its {100} plane. Both structures have pods of 10 nm sizes and grow along ⟨110⟩ directions. Variously shaped particles, including tadpole-like or teardrop-like monopods, 90° L-shaped, 180° I-shaped, and 120° V-shaped bipods, T-shaped, Y-shaped, and regular triangular tripods, and cross-like tetrapods, have been produced. Due to the high conductivity of metal, these branched structures are quite promising considering their applications as interconnections in the “bottom-up” self-assembly approach toward future nanocircuits and nanodevices, as well as in other related fields.