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Comparison between electrical and optical properties of Carbon dots, silver nanoparticles and hybrid carbon/silver nanoparticles: Experimental evidence of the interaction of Carbon dots on silver nanoparticles
Nano-Structures & Nano-Objects Pub Date : 2020-11-01 , DOI: 10.1016/j.nanoso.2020.100596
Jeison Manuel Arroyave , María Eugenia Centurión , Jhon Jairo Prías-Barragán

The comparison between electrical and optical properties of AgNPs, Cdots and [email protected] were investigated. The synthesis of the nanoparticles was carried out via the microwave method as a quite simple and environmentally friendly method. The current–voltage curve characteristics of these nanoparticles were measured by using ITO (indium tin oxide) as a holder support material. These measurements were performed by two different electrical methods and the HOMO–LUMOband gap energy values (Eg) were obtained. The Eg values obtained for each nanomaterial were correlated with the optical properties, such as Surface Plasmon Resonance (SPR). Electrical resistance values were obtained from the electrical studies in the ITO/sample contacted electrically by two points configurations. The comparisons of the [email protected] electrical resistance, Eg and nanoparticle size values provide important information about the interaction between their components. Electrical resistance data in conjunction with the electrical circuit theory, provide relevant information about the surface coverage of AgNPs with Cdots on [email protected] The simplicity of the methodology used suggest useful for further studies related to the topic of nanomaterials.



中文翻译:

碳点,银纳米颗粒和碳/银杂化纳米颗粒的电学和光学性能比较:银纳米颗粒上碳点相互作用的实验证据

研究了AgNPs,Cdots和[受电子邮件保护]的电学和光学性质的比较。纳米颗粒的合成是通过微波方法进行的,这是一种非常简单且对环境友好的方法。这些纳米颗粒的电流-电压曲线特征是通过使用ITO(铟锡氧化物)作为支架支撑材料来测量的。这些测量是通过两种不同的电学方法以及HOMO-LUMOband隙能值(ËG)。的ËG每种纳米材料获得的数值与光学特性(例如表面等离振子共振(SPR))相关。电阻值是通过两点电接触的ITO /样品中的电学研究获得的。[受电子邮件保护的]电阻的比较,ËG纳米尺寸值提供了有关其组分之间相互作用的重要信息。电阻数据与电路理论相结合,提供了有关[在电子邮件中具有Cdots的AgNPs的表面覆盖率的相关信息]。所用方法的简单性表明,对于与纳米材料相关的进一步研究很有用。

更新日期:2020-11-03
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