| Effective Inorganic-Organic Composite Electrolytes for Efficient Solid-State Dye Sensitized Solar Cells |
| M. Shaheer Akhtar, Zhen Yu Li, Woojin Lee, O-Bong Yang School of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonju, Korea |
Effective composite electrolytes of different inorganic nanofiller (TiO2, SiO2, Al2O3) and polyethylene glycol (PEG) were prepared for the fabrication of dye sensitized solar cells (DSSCs). The morphological and structural studies revealed that the crystallinity of Al2O3-PEG composite electrolyte was lower than TiO2-PEG, SiO2-PEG electrolyte and PEG only. AL2O3-PEG composite electrolyte showed the highest ionic conductivity of 4.1 mS.cm-1 owing to its high homogeneity and good mixing between PEG and Al2O3. DSSC fabricated with Al2O3-PEO composite electrolyte presented the highest conversion efficiency of 5.1% with high JSC of 12.42 mA/cm2 and VOC of 0.667 V as compared to other composite electrolytes. The introduction of inorganic nanofillers significantly improved the morphological and ionic conductivity of composite electrolyte, resulting in the enhanced photocurrent density, cell efficiency and stability of device |