Effect of Conducting Ability of Electrolytes on the Photovoltaic Performance of Quasi-Solid State Dye-Sensitized Solar Cells

• Published in: Molecular Crystals and Liquid Crystals Vol. 538; no. 1; pp. 298 - 303
• Main Authors: Trang, Tran Thanh, Kim, Jun Yun, Lee, Jeong Gwan, Cheon, Jong Hun, Kim, Na Ree, Ahn, Kwang-Soon, Kim, Jae Hong
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis Group 31-05-2011; Taylor & Francis Ltd
• Subjects: Density; Dye-sensitized solar cells; Dyes; Electrodes; Electrolytes; Ionic mobility; ionic mobility of electrolyte; Ions; Photovoltaic cells; photovoltaic performances; PMMA and PEO electrolyte; Polymethyl methacrylates; quasi-solid type of DSSC; Reaction kinetics; Solar cells; Titanium dioxide
• ISSN: 1542-1406; 1563-5287; 1527-1943
• DOI: 10.1080/15421406.2011.564477

DSSCs based on quasi-solid type of electrolytes were prepared to investigate the influence of ionic mobility and recombination kinetics in electrolytes on DSSC performances. The improved ionic mobility of electrolyte in PMMA system resulted in the enhancement of J
sc
value in DSSC which was well confirmed with the incident photon-to-current spectra and the impedance analysis. Furthermore, the retarded recombination rate from TiO
2
electrode to electrolyte in PMMA system enhanced the electron life time of DSSC in the photoanode. DSSCs based on quasi-solid type of electrolytes composed of PMMA showed a power conversion efficiency of 3.36% underAM 1.5 illumination (100 mWcm
−2
) in an photo active area of 0.24 cm
2
, short circuit current density of 7.69 mAcm
−2
, open circuit photo voltage of 0.69 Vandafill-factor of 64%.