Lee, KM. and Suryanarayanan, V. and Ho, KC. (2009) High efficiency quasi-solid-state dye-sensitized solar cell based on polyvinyidene fluoride-co-hexafluoro propylene containing propylene carbonate and acetonitrile as plasticizers. Journal of Photochemistry and Photobiology A:Chemistry, 207 (2-3). pp. 224-230. ISSN 1010-6030

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Quasi-solid-state dye-sensitized solar cells (DSSCs) with differentweight ratios of polyvinyidene fluorideco- hexafluoro propylene (PVDF-HFP) containing two different plasticizers such as propylene carbonate (PC) and acetonitrile (AN) were fabricated and the effects of TiO2 morphology, light intensities as well as different organic iodides on the solar cell performance were studied. Two TiO2 photoelectrodes were designedby the coating of low(P1) and high molecularweight poly(ethylene glycol) (P2) incorporatedinto the TiO2 suspension. The DSSCs fabricated with the P2 TiO2 electrode showbetter performance in terms of short-circuit current densities (JSC) and conversion efficiencies than the P1 for all the weight percentages of PVDF-HFP containing both plasticizers. Further, the maximum current density (JSC) and conversion efficiency of PVDF-HFP containing different organic iodides follow the order: TBAI > TPAI >NH4I irrespective of the solvents and light intensity. A good conversion efficiency of 6.74% with JSC of 16.04mA/cm2, an open-circuit voltage (VOC) of 0.657V and a fill factor of 0.64 under illumination of 100mW/cm2 was obtained for the DSSC with 10% of PVDF-HFP containing 0.4M of TBAI and 0.04M of I2 in PVDF-HFP/AN system.

Item Type: Article
Uncontrolled Keywords: Dye-sensitized solar cell; Gel polymer electrolyte; TiO2 morphology; Organic iodide; Electrochemical impedance spectroscopic
Subjects: Electroorganic
Depositing User: TTBD CECRI
Date Deposited: 01 Apr 2012 17:45
Last Modified: 01 Apr 2012 17:45
URI: http://cecri.csircentral.net/id/eprint/545

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