P(MMA-EMA) Random Copolymer Electrolytes Incorporating Sodium Iodide for Potential Application in a Dye-Sensitized Solar Cell

Abstract

Abstract:Polymer electrolytes based on 90 wt% of methyl methacrylate and 10 wt% of ethyl methacrylate (90MMA-co-10EMA) incorporating different weight ratios of sodium iodide were prepared using the solution casting method. The complexation between salt and copolymer host has been investigated using Fourier transform infrared spectroscopy. The ionic conductivity and thermal stability of the electrolytes were measured using impedance spectroscopy and differential scanning calorimetry, respectively. Scanning electron microscopy was used to study the morphology of the polymer electrolytes. The ionic conductivity and glass transition temperature increased up to 20 wt% of sodium iodide (5.19 × 10) and decreased with the further addition of salt concentration, because of the crosslinked effect. The morphology behavior of the highest conducting sample also showed smaller pores compared to the other concentration. The total ionic transference number proved that this system was mainly due to ions, and the electrochemical stability window was up to 2.5 V, which is suitable for a dye-sensitized solar cell application. This sample was then tested in a dye-sensitized solar cell and exhibited an efficiency of 0.62%. OPEN ACCESSPolymers 2015, 7 267

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“…Research in sodium ion polymer electrolyte has been increasing in recent years. A few attempts have tried polymer electrolytes based on sodium ion complexed films (Dzulkurnain et al, 2015). The main advantage of using sodium metal ion is its availability in abundance at a cheaper cost than lithium.…”

Polymer Electrolytes Based on Novel Poly(Ethyl Methacrylate-co-Deproteinized Natural Rubber) for dye Sensitized Solar Cell Application

“…It could be observed that the FTIR spectra shows several important peaks assigned to C=O stretching at (1720-1731 cm -1 ) (Fig. 4(a)) [16,20], ν a -(C-O-C) at (1147-1151 cm -1 ) (Fig. 4(b)) [20,22] and O-C 2 H 5 at (1443-1451 cm -1 ) (Fig.…”

“…In our previous work [15], the modification of polymer host was done using solvent-free UV-curing technique by copolymerizing ethyl methacrylate (EMA) with methyl methacrylate (MMA) monomer. The copolymer was then added with sodium iodide (NaI) for SPEs preparation.…”

“…The copolymer was then added with sodium iodide (NaI) for SPEs preparation. The SPEs were found to show reasonably good photoelectro-chemical conversion efficiency when applied in DSSC [16]. In present study, we have attempted to use bio-based monomer which is deproteinized natural rubber (DPNR) and magnesium iodide as salt for SPEs preparation in order to produce greener polymer electrolytes with acceptable conductivity.…”

“…The mixture was stirred until the DMPA completely dissolved and exposed to a UV radiation box of 15-W UV lamps under a continuous flow of nitrogen gas for 30 min. This preparation technique was reported in the authors' earlier article [16]. The copolymer formed was then washed using methanol in order to remove residual monomers.…”