Ionic conductivity of solid polymer electrolytes for dye-sensitized solar cells

2010 ◽  
pp. n/a-n/a
Author(s):  
Joo Wan Kim ◽  
Young Chan Bae
Keyword(s):  
Solar Cells ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Dye Sensitized Solar Cells ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Dye-sensitized solar cells based on composite solid polymer electrolytes

2005 ◽  
pp. 889 ◽  
Author(s):  
Moon-Sung Kang ◽  
Jong Hak Kim ◽  
Young Jin Kim ◽  
Jongok Won ◽  
Nam-Gyu Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Electrolytes ◽  
Dye Sensitized Solar Cells ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Composite Solid

scholarly journals Characteristics of Dye-Sensitized Solar Cell Assembled from Modified Chitosan-Based Gel Polymer Electrolytes Incorporated with Potassium Iodide

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4115 ◽  
Author(s):  
Aimi Mahirah Zulkifli ◽  
Nur Izzah Aqilah Mat Said ◽  
Shujahadeen Bakr Aziz ◽  
Elham Mohammed Ali Dannoun ◽  
Shameer Hisham ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ionic Conductivity ◽  
Dielectric Permittivity ◽  
Polymer Electrolyte ◽  
Potassium Iodide ◽  
Polymer Electrolytes ◽  
Dye Sensitized Solar Cells ◽  
Gel Polymer Electrolytes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In the present work, phthaloyl chitosan (PhCh)-based gel polymer electrolytes (GPEs) were prepared using dimethylformamide (DMF) as a solvent, ethyl carbonate (EC) as a co-solvent, and a set of five quaternaries of potassium iodide (KI) as a doping salt, which is a mixed composition of iodine (I2). The prepared GPEs were applied to dye-sensitized solar cells (DSSC) to observe the effectiveness of the electrolyte, using mesoporous TiO2, which was sensitized with N3 dye as the sensitizer. The incorporation of the potassium iodide-based redox couple in a polymer electrolyte is fabricated for dye-sensitized solar cells (DSSCs). The number of compositions was based on the chemical equation, which is 1:1 for KI:I2. The electrical performance of prepared GPE systems have been assessed using electrical impedance spectroscopy (EIS), and dielectric permittivity. The improvement in the ionic conductivity of PhCh-based GPE was observed with the rise of salt concentration, and the maximum ionic conductivity (4.94 × 10−2 S cm−1) was achieved for the 0.0012 mol of KI:I2. The study of dielectric permittivity displays that ions with a high dielectric constant are associated with a high concentration of added ions. Furthermore, the gel polymer electrolyte samples were applied to DSSCs to detect the conversion effectiveness of the electrolytes. For electrolytes containing various content of KI:I2 the highest conversion efficiency (η%) of DSSC obtained was 3.57% with a short circuit current density (Jsc) of 20.33 mA cm−2, open-circuit voltage (Voc) of 0.37 V, fill factor (FF) of 0.47, as well as a conductivity of 2.08 × 10−2 S cm−1.

QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH A HIGH MOLECULAR GEL POLYMER ELECTROLYTE BASED ON PEO/P(VDF-HFP)

2010 ◽  
Vol 09 (04) ◽  
pp. 257-261 ◽  
Author(s):  
D. W. ZHANG ◽  
X. D. LI ◽  
S. M. HUANG ◽  
Z. A. WANG ◽  
J. H. SHI ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Electrochemical Impedance ◽  
Dye Sensitized Solar Cells ◽  
Weight Ratio ◽  
Volume Ratio ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Quasi-solid-state dye-sensitized solar cells were fabricated using a high molecular polymer redox electrolyte. Poly(ethylene oxide) (PEO) and Poly(vinylidenefluoride-co-hexafluoropropylene) (P(VDF-HFP)) were used to form a stable quasi-solid structure and a three-dimensional gel polymer network structure. The polymer electrolytes were composed of LiI , I2 , and DMPII in the mixture of propylene carbonate (PC) and γ-butyrolactone (GBL) with different volume ratios. A metal-free organic dye (indoline dye D102) was used as a sensitizer. The ionic conductivity of the gel polymer electrolytes was measured with Electrochemical Impedance Spectroscopy (EIS). The dependence of the ionic conductivity on the volume ratio of PC to GBL was investigated. The volume ratio of the mix solvent, weight ratio of PEO/P(VDF-HFP), and the weight ratio of TiO2 fillers were optimized. The optimized quasi-solid-state cell exhibited an efficiency of 5.49% at full sunlight (air mass 1.5, 60 mW/cm2) irradiation.

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