Optical properties of hybrid T3Pyr/SiO2/3C-SiC nanowires

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• 作者：Filippo Fabbri (1)
  Francesca Rossi (1)
  Manuela Melucci (2)
  Ilse Manet (2)
  Giovanni Attolini (1)
  Laura Favaretto (2)
  Massimo Zambianchi (2)
  Giancarlo Salviati (1)
  
• 关键词：Nanowires ; Functionalization ; Silicon carbide ; Oligothiophene ; Fluorescence ; 81.07.Pr78.67.Uh
• 刊名：Nanoscale Research Letters
• 出版年：2012
• 出版时间：December 2012
• 年：2012
• 卷：7
• 期：1
• 全文大小：1199KB
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• 作者单位：Filippo Fabbri (1)
  Francesca Rossi (1)
  Manuela Melucci (2)
  Ilse Manet (2)
  Giovanni Attolini (1)
  Laura Favaretto (2)
  Massimo Zambianchi (2)
  Giancarlo Salviati (1)
  
  1. IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
  2. ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
  
• ISSN：1556-276X

文摘

A new class of nanostructured hybrid materials is developed by direct grafting of a model thiophene-based organic dye on the surface of 3C-SiC/SiO2 core/shell nanowires. TEM-EDX analysis reveals that the carbon distribution is more spread than it would be, considering only the SiC core size, suggesting a main contribution from C of the oligothiophene framework. Further, the sulfur signal found along the treated wires is not detected in the as-grown samples. In addition, the fluorescent spectra are similar for the functionalized nanostructures and T3Pyr in solution, confirming homogeneous molecule grafting on the nanowire surface. Chemical and luminescence characterizations confirm a homogeneous functionalization of the nanowires. In particular, the fluorophore retains its optical properties after functionalization.