Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7715300 | International Journal of Hydrogen Energy | 2015 | 8 Pages |
Abstract
In this paper a carbohydrate polymer (Phytagel/gellan gum) based solid gel electrolyte synthesis and its application in dye sensitized solar cell is reported. Potassium iodide has been added in Gelrite/Phytagel biopolymer matrix to develop solid gel electrolyte. Complex impedance spectroscopy shows liquid like ionic conductivity, with maximum conductivity 2.5 Ã 10â2 S cmâ1 at 60:40 composition. Infrared spectroscopy (IR) confirms the formation of complex nature while x-ray diffraction (XRD) affirms the composite nature and suppression in crystallinity by salt doping. Polarized microscopy (POM) shows enhancement in amorphousity of gel matrix by salt doping which is a known favourable condition for ionic conductivity enhancement in gel electrolyte system and supported by our XRD data. A dye sensitized solar cell (DSSC) has been fabricated using maximum conductivity which shows with Jsc = 3.2 Ã 10â3 mA/cm2, Voc = 0.57, FF = 0.90, ɳ = 1.47 at 1 sun condition.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Rahul Singh, B. Bhattacharya, Hee-Woo Rhee, Pramod K. Singh,