Influence of ionic additives NaI/I2 on the properties of polymer gel electrolyte and performance of quasi-solid-state dye-sensitized solar cells

Lan, Zhang; Lin, Jianming; Huang, Miaoliang; Li, Pingjiang; Li, Qinhua

doi:10.1016/j.electacta.2007.09.061

Cited by 42 publications

(16 citation statements)

References 33 publications

(37 reference statements)

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“…This increment can be recognized due to the larger number of the diffusion coefficient of triiodide rendering the dye molecule to be able to regenerate more easily resulting in lower recombination rate which leads to increase of J sc 575859. Normally, the charge transport mechanism in the polymer electrolyte of the DSSCs can be interpreted as Grotthus mechanism which is also known as the electron hopping and ion exchange606162. The increase of the diffusion coefficient could be explainede by the Grotthus mechanism illustrated as below63:…”

Section: Resultsmentioning

confidence: 99%

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

Ming

Ramesh

2016

Sci Rep

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In this study, dye-sensitized solar cells (DSSCs) has been assembled with poly(1-vinylpyrrolidone-co-vinyl acetate) (P(VP-co-VAc)) gel polymer electrolytes (GPEs) which have been incorporated with binary salt and an ionic liquid. The potential of this combination was studied and reported. The binary salt system GPEs was having ionic conductivity and power conversion efficiency (PCE) that could reach up to 1.90 × 10−3 S cm−1 and 5.53%, respectively. Interestingly, upon the addition of the ionic liquid, MPII into the binary salt system the ionic conductivity and PCE had risen steadily up to 4.09 × 10−3 S cm−1 and 5.94%, respectively. In order to know more about this phenomenon, the electrochemical impedance studies (EIS) of the GPE samples have been done and reported. Fourier transform infrared studies (FTIR) and thermogravimetric analysis (TGA) have also been studied to understand more on the structural and thermal properties of the GPEs. The Nyquist plot and Bodes plot studies have been done in order to understand the electrochemical properties of the GPE based DSSCs and Tafel polarization studies were done to determine the electrocatalytic activity of the GPE samples.

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Section: Resultsmentioning

confidence: 99%

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

Ming

Ramesh

2016

Sci Rep

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“…It is known that by adding Li + /K + into the electrolyte leading to complexation reaction between the cations and carbonyl or ether groups in the hybrid, 11 and formed linkages will decrease the liquid electrolyte absorbency. The addition of I 2 leads to formation of triiodide ions in liquid electrolyte which may block the complexation interaction and break down some linkages, thus increase the liquid electrolyte absorbency.…”

Section: Resultsmentioning

confidence: 99%

INFLUENCE OF I₂ CONCENTRATION AND CATIONS ON THE PERFORMANCE OF QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH THERMOSETTING POLYMER GEL ELECTROLYTE

Yin

Lin

et al. 2010

Int. J. Nanosci.

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Thermosetting polymer gel electrolytes (TPGEs) based on poly(acrylic acid)-poly(ethylene glycol) (PAA-PEG) hybrid were prepared and applied to fabricate dye-sensitized solar cells (DSCs). N-methylpyrrolidone (NMP) and γ-butyrolactone (GBL) were used as solvents for liquid electrolytes and LiI and KI as iodide source, separately. The microstructure of PAA-PEG shows a well swelling ability in liquid electrolyte and excellent stability of the swollen hybrid. The TPGE was optimized in terms of the liquid electrolyte absorbency and ionic conductivity photovoltaic performance. Quasi-solid-state DSCs containing TPGE with optimized KI electrolyte show higher efficiency, voltage, fill factor, and lower photocurrent than those with LiI electrolyte. The related mechanism was discussed. A quasi-solid-state DSC fabricated with optimized polymer gel electrolyte obtained an overall energy conversion efficiency of 4.90% under irradiation of 100 mW/cm 2 (AM1.5). Int. J. Nanosci. 2010.09:295-299. Downloaded from www.worldscientific.com by UNIVERSITY OF AUCKLAND LIBRARY -SERIALS UNIT on 03/01/15. For personal use only. 296 X. D. Li et al. Int. J. Nanosci. 2010.09:295-299. Downloaded from www.worldscientific.com by UNIVERSITY OF AUCKLAND LIBRARY -SERIALS UNIT on 03/01/15. For personal use only.

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“…3 However, liquid electrolyte has few practical problems in long term due to its volatility and has major stability problem as a result of leakage, flammability of the liquid and decomposition of the dye. 4,5 Thus, researchers propose to substitute the liquid electrolyte with a quasi-solid polymer electrolyte or also known as gel polymer electrolyte (GPE). [6][7][8][9][10] GPEs have reasonably good ionic conductivity, low vapor pressure, tremendous filling, and contacting properties and better thermal stability to make it a good electrolyte relative to liquid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Amelioration of electrochemical and photovoltaic performances on P(VP‐co‐VAc) based gel polymer electrolyte by incorporating double salt for dye‐sensitized solar cells

Robin

Ramesh

2016

J of Applied Polymer Sci

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Dye-sensitized solar cell (DSSC) is an alternative photovoltaic application used to replace the liquid electrolyte dependent conventional photovoltaic cell. In this research, gel polymer electrolyte (GPE) was used to replace the unstable liquid electrolyte. This GPE consists of poly[1-vinylpyrrolidone-co-vinyl acetate] (P[VP-co-VAc]), tetrabutylammonium iodide (TBAI), sodium iodide (NaI), iodine (I 2 ), ethylene carbonate (EC), and propylene carbonate (PC). The GPE was tested for its ionic conductivity and an optimum level was reached at sample with 30% TBAI and 6% NaI at 1.17 3 10 23 S cm 21 . The DSSC was then fabricated with all GPEs and a photovoltaic performance study was conducted. As a result, the highest photovoltaic conversion efficiency (PCE), h for a single salt was 3.04% for 40% TBAI. When a second salt is added, the system showed improvement in efficiency, h to 4.54% with short circuit current density,

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Influence of ionic additives NaI/I2 on the properties of polymer gel electrolyte and performance of quasi-solid-state dye-sensitized solar cells

Cited by 42 publications

References 33 publications

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

INFLUENCE OF I₂ CONCENTRATION AND CATIONS ON THE PERFORMANCE OF QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH THERMOSETTING POLYMER GEL ELECTROLYTE

Amelioration of electrochemical and photovoltaic performances on P(VP‐co‐VAc) based gel polymer electrolyte by incorporating double salt for dye‐sensitized solar cells

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Influence of ionic additives NaI/I2 on the properties of polymer gel electrolyte and performance of quasi-solid-state dye-sensitized solar cells

Cited by 42 publications

References 33 publications

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

The potential of incorporation of binary salts and ionic liquid in P(VP-co-VAc) gel polymer electrolyte in electrochemical and photovoltaic performances

INFLUENCE OF I2 CONCENTRATION AND CATIONS ON THE PERFORMANCE OF QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH THERMOSETTING POLYMER GEL ELECTROLYTE

Amelioration of electrochemical and photovoltaic performances on P(VP‐co‐VAc) based gel polymer electrolyte by incorporating double salt for dye‐sensitized solar cells

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INFLUENCE OF I₂ CONCENTRATION AND CATIONS ON THE PERFORMANCE OF QUASI-SOLID-STATE DYE-SENSITIZED SOLAR CELLS WITH THERMOSETTING POLYMER GEL ELECTROLYTE