Electrical and structural properties of multi-walled carbon nanotube–doped polymer electrolyte for photo electrochemical device

Abstract

The present investigation deals with the preparation of multi-walled carbon nanotube (MWCNT)-doped plasticized polymer electrolyte. The nanocomposite has been prepared using solution casting method. Complex impedance spectroscopy study revealed the utmost room temperature conductivity of 5.6 × 10−4 S/cm when optimized plasticized polymer electrolyte (poly(ethyl methacrylate)+30% sodium iodide+60% ethylene carbonate) was doped with 7% MWCNT. Temperature dependence of conductivity showed Arrhenius behavior. The surface morphology and crystalline–amorphous deviation of the composite was observed using scanning electron microscope. Perfect complexation of various components of the composite was confirmed from Fourier-transform infrared spectroscopy and X-ray diffraction (XRD) data. The transference number measurement was done to calculate the proportionate amount of ionic and electronic conductivity. A dye sensitized solar cell has been fabricated using maximum ionic conductivity of solid polymer electrolyte and its electrical parameters measured at 1 sun condition.

Polyvinylpyrrolidone with ammonium iodide and 1-hexyl-3-methylimidazolium iodide ionic liquid-doped solid polymer electrolyte for efficient dye sensitized solar cell

“…This low value of efficiency is expected in this case is probably due to lower ionic conductivity at least one or two orders of magnitude. 23 In addition, it was clear that our DSSC was stable up to as high as 22 h with a nominal decrease in J sc and V oc .…”

“…A DSSC with an area of 0.72 cm 2 was fabricated following the procedure reported elsewhere using polymer solid electrolyte corresponding to maximum conductivity. 23 As a common procedure, the TiO 2 paste was coated on fluorine doped tin oxide (FTO) substrate using a doctor blade method. The thickness of the above-coated TiO 2 film was controlled by an adhesive scotch tape with a thickness around 10 µm and was further followed by heat treatment at 450°C for 30 min.…”

“…The key property of this technology as far as research is concerned is the study of oxides properties (such as ZnO and TiO 2 ) and nanocoating potential to be used in the DSSCs. 17 –25…”

Ionic liquid (1-hexyl-3-methylimidazolium iodide)-incorporated biopolymer electrolyte for efficient supercapacitor

“…where Z ″ is the imaginary part of impedance at the lowest frequency. 9 –15 The value of specific capacitance we have calculated using low-frequency impedance is 24.8 F g −1 .…”

Expeditious UV detection of tungstite (WO3·H2O) and tungsten oxide (WO3) decorated multiwall carbon nanotubes (MWCNT) based photodetector: ultrafast response and recovery time

“…CNTs can be divided in three different categories depending upon the number of walls, single-walled CNT and multi-walled CNT (MWCNT). MWCNT has potential application in electrochemical devices, field emission devices, nano electronic devices, sensors [4][5][6] etc. Exposure to ultra-violet (UV) radiation can do serious damage to human and other living beings.…”