Supramolecular Hybrid of Metal Nanoparticles and Semiconducting Single-Walled Carbon Nanotubes Wrapped by a Fluorene-Carbazole Copolymer
Supramolecular Hybrid of Metal Nanoparticles and Semiconducting Single-Walled Carbon Nanotubes Wrapped by a Fluorene-Carbazole Copolymer
复制标题
芴-咔唑共聚物包裹的金属纳米颗粒和半导体单壁碳纳米管的超分子杂化物
DOI：
10.1002/chem.201101669
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
N.Nakashima
中科院分区：
文献类型：
--
作者：
H.Ozawa;N.Ide;T.Fujigaya;Y.Niidome;N.Nakashima
描述了制备具有特定手性的金属纳米颗粒/半导体单壁碳纳米管（SWNT）杂化物的第一种方法。为此，使用具有两个长链烷基取代基的芴衍生物和携带硫醇基的咔唑衍生物的共聚物。通过UV/维斯/NIR吸收和拉曼光谱以及2D光致发光映射，发现共聚物选择性地溶解（7，6）-和（8，7）SWNT。金和银纳米粒子的直径分别为约3.8和约3.2 nm，很容易附着沿着单壁碳纳米管之间的配位键的纳米粒子和共聚物上的硫醇部分，所揭示的原子力和电子显微镜研究。 该研究为设计和制备具有特定纳米管手性的金属纳米颗粒/半导体单壁碳纳米管杂化材料提供了一种新的方法。
The first approach for the preparation of metal nanoparticle/semiconducting single‐walled carbon nanotube (SWNT) hybrids with specified chirality is described. For this purpose, a copolymer of a fluorene derivative with two long‐chain alkyl substituents and a carbazole derivative carrying a thiol group was used. The copolymer was found to selectively dissolve (7,6)‐ and (8,7)SWNTs, as determined by UV/Vis/NIR absorption and Raman spectroscopy and 2D photoluminescence mapping. Gold and silver nanoparticles with diameters of about 3.8 and about 3.2 nm, respectively, were readily attached along the SWNTs by means of coordination bonds between the nanoparticles and the thiol moieties on the copolymer, as revealed by atomic force and electron microscopy studies. The study provides a novel way to design and fabricate metal nanoparticle/semiconducting SWNT hybrids with specific nanotube chirality.