Stability improvement of gel-state dye-sensitized solar cells by utilization the co-solvent effect of propionitrile/acetonitrile and 3-methoxypropionitrile/acetonitrile with poly(acrylonitrile-co-vinyl acetate)

Effects of TiO2 and TiC Nanofillers on the Performance of Dye Sensitized Solar Cells Based on the Polymer Gel Electrolyte of a Cobalt Redox System

“…According to the report in the literature, the presence of NFs in a PGE may contribute two major effects to the conductivity. The first one is inhibiting the crystallization of the polymers by reducing the interaction among polymer chains. ,,,− Since aggregated and crystallized polymer chains usually obstruct the transport of ions and charges, the conductivity of a PGE will be increased by introducing NFs. This effect should occur for both TiO 2 and TiC NFs and is independent of the redox couple systems.…”

“…In the literature, many studies had reported that the photovoltaic performance of gel-state DSSCs can be improved by introducing TiO 2 NFs into the PGEs. ,,,− The presence of TiO 2 fillers could increase the conductivity of PGEs and, furthermore, decrease the charge-transfer resistance at the Pt/electrolyte interface. However, these effects were only found for the iodide/triiodide redox system.…”

In situpolymerization process: an essential design tool for lithium polymer batteries

“…[270][271][272] Other solvents like H 2 O, acetonitrile (ACN), dimethylformamide (DMF), N,N-dimethylacetamide (DMAC), and N-methyl pyrrolidone (NMP) are also used in GPEs for specific applications. [273][274][275][276][277] The advantage of SPE over GPEs includes their high mechanical stability and enhanced compatibility with Li-metal anode owing to the absence of a liquid phase. Although the liquid phase in GPE may often undergo unwanted parasitic reactions over the Li-metal anode and can destabilize the interface and interphase, the liquid-like ionic conductivity of GPEs is the utmost advantage due to the enhanced ion transport characteristics.…”

Properties of Working Electrodes with IGZO layers in a Dye Sensitized Solar Cell

“…3) Although platinum (Pt) was mainly used in the case of existing catalyst materials, application studies of diversified materials with economy and thermal stability to substitute for the expensive Pt have been reported. 4,5) For the electrolyte which plays a role of oxidation-reduc-tion the electrons moved through the CE, there are iodide mixture, iodine dissolved in a nonprotonic solvent, LiI, 6) NaI, 7) acetonitrile, and propionitrile, 8) etc. Also, the WE consists of TCO substrate and semiconductor oxide of TiO 2 , and dye coated on the TiO 2 particles, where the TCO substrate includes indium tin oxide (ITO), fluorine doped tin oxide (FTO), aluminum doped zinc oxide (AZO), etc., and the FTO is used most frequently among them because of its excellent thermal stability, relatively low surface resistance and a high transmissivity exceeding 80%.…”