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首页> 外文期刊>Physica status solidi, B. Basic research >Single‐Walled Carbon Nanotubes as One‐Dimensional Template for CdS Nanoparticles Growth
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Single‐Walled Carbon Nanotubes as One‐Dimensional Template for CdS Nanoparticles Growth

机译：单壁碳纳米管作为CDS纳米粒子生长的一维模板

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>In the present work is demonstrated that single‐walled carbon nanotubes (SWCNTs) are excellent one‐dimensional (1D) structures for the growth and stabilization of CdS nanoparticles (CdS NPs) in dispersions. For this, we have synthesized colloidal CdS NPs owning different diameters (from 2 to 5.5?nm). Then, the surface modification of NPs by using nonylphenol as capping agent was evaluated. The modification of CdS NPs resulted in a crystal rearrangement for all the NP sizes to NPs of approximately 2?nm of diameter showing an enhanced photoluminescence signal at 415?nm. Following the same experimental procedure, CdS NPs directly grown on SWCNTs (CdSNPs@SWCNTs) show absorption and photoluminescence properties similar to those of already passivated NPs with nonylphenol, in consequence the addition of a better capping agent did not affect the optical properties of as‐synthesized CdSNPs@SWCNTs. Our experimental results demonstrate that SWCNTs are excellent 1D templates for the growth and stabilization of CdS NPs allowing to combine the optical tunable properties of NPs with the outstanding electronic properties of SWCNTs. This facile low cost methodology provides a successful strategy for the development of applications in a large range of fields including heterogeneous catalysis, optoelectronic and photoelectronic devices.
机译： >在目前的工作中被证明，单壁碳纳米管（单壁碳纳米管）是用于的CdS纳米粒子（硫化镉NPS）的分散体中的生长和稳定化优异的一维（1D）的结构。为此，我们已经合成了胶体的CdS纳米颗粒拥有不同的直径（从2到5.5？纳米）。然后，通过使用作为壬基酚封端剂NP的表面改性进行评价。的CdS NPs的修饰导致了晶体重排的所有NP尺寸来示出在415？纳米的光致发光增强信号的约2？直径的纳米的NP。按照相同的实验程序，硫化镉纳米粒子直接生长在单壁碳纳米管（CdSNPs @单壁碳纳米管）显示吸收和光致发光性质类似于那些已经壬基酚钝化纳米粒子的，在结果中添加一个更好的封端剂并不影响AS-的光学特性合成CdSNPs @单壁碳纳米管。我们的实验结果表明，单壁碳纳米管是极好的一个维模板硫化镉纳米粒子允许纳米粒子的光学可调性能与单壁碳纳米管的优异电子特性相结合的发展和稳定。此容易低成本方法提供了一个成功的策略的在大范围的领域的应用，包括多相催化，光电子器件和光电子器件的开发。

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