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

Studies of solvent effect on the conductivity of 2‐mercaptopyridine‐doped solid polymer blend electrolytes and its application in dye‐sensitized solar cells

“…The enhancement of DSSC efficiency with 2‐MCP‐doped PEO‐PMMA‐KI‐I 2 electrolytes may be due to high π‐electron density of 2‐MCP makes the better formation of charge transfer complex with iodine in redox couple . In our previous report, we have investigated the influence of 2‐MCP in polyvinylidene fluoride/KI/I 2 polymer electrolyte for the DSSC and optimized that the 30% 2‐MCP‐doped PVDF/KI/I 2 showed the highest power conversion efficiency of 2.65%, which was higher than the efficiency of DSSC fabricated using undoped PVDF/KI/I 2 polymer electrolytes (1.18%). Also, similar observation was noted in the present study, we prepared PEO‐PMMA‐KI‐I2 polymer blend electrolytes and fabricated the DSSC using 30% 2‐MCP‐doped PEO‐PMMA‐KI‐I 2 electrolytes.…”

Performance characteristics of guanine incorporated PVDF-HFP/PEO polymer blend electrolytes with binary iodide salts for dye-sensitized solar cells

“…Furthermore, the incorporation of guanine to the PVDF-HFP/PEO/ KI þ TBAI/I 2 electrolyte was also found to be largely reduce the crystallinity of the electrolyte. This is may be due to the enhanced ion-polymer-dopant interaction in the guanine incorporated PVDF-HFP/PEO/KI þ TBAI/I 2 electrolyte [22]. The observed DSC results of the guanine incorporated polymer blend electrolyte clearly showed a lower crystallinity and higher amorphous nature than compared to the other two electrolytes.…”

“…3(c)). This may be due to the formation of strong interaction between the guanine and PVDF-HFP/PEO/KI þ TBAI/I 2 through a lone pair of electrons in the N and O atoms of the guanine [22]. From the XRD results, it is evident that the incorporation of guanine largely reduced the crystallinity of the polymer and the increased the amorphous nature of the polymer blend electrolyte.…”

A low-cost quasi-solid DSSC assembled with PVDF-based gel electrolyte plasticized by PC–EC & electrodeposited Pt counter electrode

“…And it is also applied in quasi-solid DSSC as the matrix of gel electrolytes due to its high adhesion strength with Pt counter electrode and TiO2 photoanode. But alone PVDF is difficult to provide the suitable pore structure and only gains the low efficiency for DSSC [7].…”

“…Thus, interpenetrating-polymer-network (IPN) PVDF composites copolymerized with other monomers are interested to act as gel polymer electrolyte of DSSC [7][8][9].…”