Development of a conjugated polyaniline incorporated electrospun poly(vinylidene fluoride‐co‐hexafluoropropylene) composite membrane electrolyte for high performance dye‐sensitized solar cells

Abstract

Different weight percentage (2, 3, 4, and 5 wt %) of polyaniline (PANI) were incorporated into electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) composite membranes (esCPMs). The regular morphology, molecular structure, crystallinity, porosity, electrolyte uptake, and leakage of the composite membranes were examined. The esCPMs were activated in liquid electrolyte containing 0.5 M LiI, 0.05 M I 2 , and 0.5 M 4-tert-butylpyridine and 0.5 M 1-butyl-3-methylimidazoliun iodide in acetonitrile to afford electrospun PVdF-HFP/PANI composite membrane electrolytes (esCPMEs). The influence of different wt % of PANI on the esCPMEs was studied by electrochemical impedance measurements and Tafel polarization studies. The photovoltaic performance of a dye-sensitized solar cell assembled using 3 wt % PANI incorporated esCPME exhibits a higher power conversion efficiency of 7.20% than that assembled using esPME (g 5 6.42%).

High performance electrospun PVdF‐HFP/SiO2 nanocomposite membrane electrolyte for Li‐ion capacitors

“…The electrospun PVdF‐HFP polymer membrane (esPM) and electrospun PVdF‐HFP/SiO 2 nanocomposite polymer membranes (esCPMs) were prepared by adding different wt % (0, 3, 5, 7, and 10) of SiO 2 nanoparticles into 16 wt % of the PVdF‐HFP solution in acetone/ N , N ′‐dimethyl acetamide (7:3 wt %) . The solutions were stirred at 60 °C for atleast 8 h to ensure homogeneity.…”

“…The crystallinity of esPM and esCPMs were examined by Differential scanning calorimetry (DSC) measurements in a temperature range of 30–250 °C at a heating rate of 10 °C min −1 (TA instruments, Model: Q600 SDT). The crystallinity of the esPM and esCPMs were calculated as follows: …”

Grafting of polyaniline by a dynamic inverse emulsion polymerization technique onto reverse osmosis membranes as an antibiofouling agent

“…4,[6][7][8][9][10] Recently, electrically conductive polymers have been suggested as a biofouling prevention process. [11][12][13][14][15] Ghaffari-Mogahaddam et al 16 reported antimicrobial activity from the addition of silver particles where the silver particles were pre-treated with NaBH4 and then mixed with poly(vinyl alcohol) and polyaniline. Most existing techniques have implemented prepolymerized polyaniline followed by grafting to the membrane surface.…”

CePd‐Nanoparticles‐Incorporated Carbon Nanofibers as Efficient Counter Electrode for DSSCs

“…Classically, a DSSC is made up of 3 parts. The first part is a photoanode, which is usually made of metal oxides semiconductors, and the second part of DSSCs is the electrolyte based on the I 3 − /I − or Co(II)/Co(III) complex redox . The third part of DSSCs is the counter electrode (CE) which is mainly fabricated by precious metals (e. g., Pt).…”