Gold nanoparticle growth monitored in situ using a novel fast optical single-particle spectroscopy method

Gold nanoparticle growth monitored in situ using a novel fast optical single-particle spectroscopy method
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DOI:
10.1021/nl070627g
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发表时间:
2007-06-01
期刊:
影响因子:
10.8
通讯作者:
Sonnichsen, Carsten
Sonnichsen, Carsten
中科院分区:
材料科学1区
文献类型:
--
作者:
Becker, Jan;Schubert, Olaf;Sonnichsen, Carsten

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金纳米棒的大小和形状相关的光学特性允许使用一种新的快速单粒子光谱(fastSPS)方法来监测它们的生长。FastSPS使用基于液晶装置的空间可寻址电子快门来调查随机沉积在基板上的粒子,比其他技术快几个数量级。我们使用fastSPS在单颗粒水平上原位观察纳米颗粒的生长,并提取纳米颗粒生长的定量数据。
Size- and shape-dependent optical properties of gold nanorods allow monitoring their growth using a novel fast single-particle spectroscopy (fastSPS) method. FastSPS uses a spatially addressable electronic shutter based on a liquid crystal device to investigate particles randomly deposited on a substrate, orders of magnitude faster than other techniques. We use fastSPS to observe nanoparticle growth in situ on a single-particle level and extract quantitative data on nanoparticle growth.