Investigation on electrical and optical properties for different composition of carbon nanotube (CNT) in nanocomposite MEH-PPV: CNT: article / Mohd Shafizan Elias

Nanocomposites are created by blend host polymers with nanoparticles that typically have higher or lower refractive indices. The host polymer for this research is poly [2-methoxy-5(2r-ethyl-hexyloxy)-l, 4-phenylene vinylenel pfnif-nfVy and the nanoparticles is Carbon Nanotube (CNT) that has been doped with the lodine. The nanocomposite MEH-ppV: CNT using Tetrahydrofuran (THF) as solvent was then deposited on substrates. The characterization of a nanocomposite MEH-ppV: CNT with different composition of CNT weight percent (}wtyo, 30wt%o, 40wt%o, SDwto/o, 60wto/o, 7$wtYo and 80wt Zo) is investigated. The electrical property that is I-V characteristic was measured in dark and under illumination. From the current voltage characteristics it can be seen that there is an increment of current when composition of CNT weight percent increase in a sample. The highest conductivity is at 60 wtTo concentration of CNT with 0.0832Sm -1. It also gives the highest value of absorption coeficient which is l.lxl0sm-r and 2.l2ey of bandgap energy for nanocomposite MEH-PPV: CNTs thin film.