A unique gel polymer electrolyte was prepared using PVDF and PEG–PPG–PEG block copolymer with I−/I3− for DSSC application. This is a cost-effective method used for the synthesis of thiourea additives. The GPE with OPPT thiourea additive achieved a good efficiency of 5.7%.

No abstract

No abstract

Highly efficient different coadsorbents using phenanthraquinone coupled with benzene/naphthalene as the donor (D), benzene acting as the π-spacer (π), and variation in acceptor (A) like aromatic/aliphatic OH-, COOH-, triazole-based derivatives were synthesized. These eight D−π–A-based coabsorbents are effectively examined for their application in dye-sensitized solar cells. The presence of hetero atoms and a dense conjugated system paved the way for the hole mobility and the rise of organic photovoltaic properties. Both the electrochemical and photovoltaic data gradually supported the studies by using I–/I3 – redox shuttle-based electrolytes. Results from impedance, Fourier transform infrared spectroscopy, UV, binding energy, and highest occupied molecular orbital–lowest unoccupied molecular orbital band gap calculations from density functional theory were analyzed to figure out the mechanistic way of our device. The TiO2 working electrode with N719 dye and synthesized CA-2 with iodolyte Z-50 as the electrolyte has the highest power conversion efficiency of 6.33% under an illumination of 100 mW/cm2.