Influence of 2,6 (N-pyrazolyl)isonicotinic acid on the photovoltaic properties of a dye-sensitized solar cell fabricated using poly(vinylidene fluoride) blended with poly(ethylene oxide) polymer electrolyte

Optimization of performance characteristics of 2-mercaptopyridine-doped polyvinylidene fluoride (PVDF) polymer electrolytes for dye-sensitized solar cells

“…The vibration bands at 1400 and 1172 cm −1 corresponds to the -CF and --CF 2 , respectively [32]. The peaks at 1072 and 840 cm −1 represent the crystalline and amorphous phases of PVDF [33]. The vibrational frequencies at 2980 and 3020 cm −1 correspond to the -CH 2 asymmetric and symmetric stretching of PVDF.…”

“…By assuming the pure PVDF is 100% crystalline, the ΔH 0 m of pure PVDF is calculated as 105 Jg −1 [33,34]. Accordingly, the addition of plasticizer into the polymer electrolytes leads to a decrease in ΔH m values due to the enhanced ion-polymer-plasticizer interaction and the crystalline/amorphous nature of polymer affects polymer's ionic conductivity [10,26].…”

Recent advances in the synthesis and applications of 2,6-dipyrazolylpyridine derivatives and their complexes

“…In this case, however, L 27 improves the DSC performance by reducing the polymer crystallinity, and by interacting with the TiO 2 electrode 15 surface rather than the soluble ruthenium complex dye. 126,127 Electropolymerisation of [Ru(terpy)(L 24 )][PF 6 ] 2 yields a luminescent, semiconducting polymer film whose broad visible absorption may make it suitable for photovoltaic applications. 30 A [ReBr(CO 3 )] adduct of a related dithienyl-3-bpp derivative, whose 20 3-bpp fragment is only bidentate, is also strongly emissive.…”

Performance Characteristics of Pyrazole as an Effective Dopant in a Blended Polymer Electrolyte for Nanocrystalline Dye-Sensitized Solar Cell Applications

“…The impedance plots were recorded in the frequency range 20 Hz to 1 MHz while the polymer films were sandwiched between silver electrodes during the conductivity analysis involving the cell geometry of Ag/polymer film/Ag with an electrode area of 0.5024 cm 2 and the value of electrical conductivity (σ) was calculated based on the equation 10 ;…”

“…DSSCs having an active area of 1 cm 2 were constructed according to the procedure as described earlier 10 and each cell had the following configuration:…”