24November2017

Materials and Electronics Engineering

Photoluminescence and electronic interaction of multi-walled carbon nanotubes conjugated with oxadiazole materials

Bo-Zhang Yu1, Zhi Yang2,3,*, Yan-Jie Su2,3 and Hu-Lin Li4

Abstract
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1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
2Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
3National Engineering Research Center for Nanotechnology, Shanghai 200241, P. R. China
4College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China

Materials and Electronics Engineering 2014,1:4

Publication Date (Web): December 15, 2014 (Article)

DOI:10.11605/mee-1-4

*Corresponding author. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Abstract 


Figure 6 Electrical transport of APND films deposited on coplanar interdigitated copper electrodes. (a) I-V curves and C-V curves (inset), and (b) current-thicknesses plot.
      Fabricating dense film of the oxadiazole-based photoelectron materials is usually limited by its low crystallization, which will influence charge injection in the devices. In this paper, multi-walled carbon nanotubes (MWCNTs) are functionalized by 2-(4-aminophenyl)-5-naphthyl-1,3,4-oxadiazole (APND) to form the MWCNTs-APND conjugate. The formation of MWCNTs-APND dense films may be attributed to attraction between coplanar APND, flexible and linear MWCNTs, and π-stacking between APND and MWCNTs. The APND and MWCNTs-APND were characterized by Fourier transform infrared spectrum, proton nuclear magnetic resonance spectrum, scanning electron microscopy, X-ray diffraction, ultraviolet-visible (UV-Vis) absorption spectrum, and photoluminescence spectrum, and nonlinear electrical measurements. The results indicate UV-Vis absorption of MWCNTs-APND in N, N-dimethylformamide solution is broadened and red-shifted. Its photoluminescence spectrum shows a narrower band than that of APND. The MWCNTs-APND dense films have the same perfect nonlinear electrical properties as those of MWCNTs ones, which is suitable for the potential applications of optoelectronic devices.

 

Keywords

Multi-walled carbon nanotubes, Photoelectron materials, Photoluminescence, Nonlinear electrical properties, Optoelectronic devices