Structural and electrical characteristics of solution processed P3HT-carbon nanotube composite

National Conference on Processing and Characterization of Materials

Mahakul, Prakash Chandra^1 ; Mahanandia, Pitamber^1,2

Department of Physics and Astronomy, National Institute of Technology, Rourkela

Odisha

769008, India^1

Department of Physics and Astronomy, National Institute of Technology, 769008, India^2

关键词: Carbon-nanotube composites;    Electrical and optical properties;    Electrical characteristic;    Fourier transform infrared;    Functional characteristics;    Hybrid nanocomposites;    Morphological characteristic;    Multiwalled Carbon Nanotube (MWCNT);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/178/1/012024/pdf
DOI  :  10.1088/1757-899X/178/1/012024

来源: IOP

【 摘 要 】

Organic semiconductors have been identified as a fascinating class of low cost and flexible novel semiconductor materials that have the electrical and optical properties which can be easily processed. Due to their interesting physical properties, organic semiconductors have attracted tremendous research attention for next generation electronics and optoelectronics. Multiwalled carbon nanotubes (MWCNT) incorporated Poly[3-hexylthiophene-2,5-diyl] (P3HT) hybrid nano-composite film have been fabricated by solution processing technique followed by spin coating method using 1,2-dichlorobenzene as an intermediate solvent. Structural and morphological characteristics of the composite film have been studied by x-ray diffraction (XRD) and scanning electron microscope (SEM). The MWCNTs were observed to be well dispersed in the polymer matrix. Crystallites were found to be more ordered barely affecting the lamellar structure of P3HT in the nano-composite film. Structural and functional characteristics of P3HT and its hybrid nano-composite have been studied by UV-Visible (UV-Vis), Fourier transform infrared (FTIR) and Raman spectroscopic characterization. Excellent electrical properties have been observed from I-V and cyclic-voltammetric characterization of the well dispersed MWCNT in the P3HT composite. Improvement in electrical properties can be attributed to the higher carrier mobility of MWCNTs in the composites.