Influence of alkylpyridine additives in electrolyte solution on the performance of dye-sensitized solar cell

Kusama, Hitoshi; Konishi, Yukiko; Sugihara, Hideki; Arakawa, Hironori

doi:10.1016/j.solmat.2003.08.001

Cited by 111 publications

(72 citation statements)

References 16 publications

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“…4-TBP and MBI as electrolyte additives increase the V oc of the DSC by 200-300 mV and the overall efficiency of the DSC by 1-2 %. [10][11][12] Whereas these additives have a very positive effect on the efficiency of the cell, they cause problems with thiocyanate-containing sensitizers in terms of thiocyanate substitution reactions at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]

et al. 2011

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The dye-sensitized solar cell N719 thermal degradation products [Ru(LH) and characterized by electrospray mass spectrometry and NMR spectroscopy. Dyesensitized solar cells (DSCs or DSSCs) prepared with 1 and 2 have efficiencies that are three and two times lower than N719 cells, respectively. Analysis of the UV/Vis and incidentphoton-to-current efficiency (IPCE) spectra indicates that the main reason for the reduced efficiencies is a reduced electron collection efficiency (η coll ). The substituted dyes give rise to lower potentials and currents. When measured at open circuit voltage illumination, the impedance is very different for

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Section: Introductionmentioning

confidence: 99%

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]

et al. 2011

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“…For the photoanode, surface passivation can effectively increase V oc by preventing the recombination of electrons in TiO 2 with acceptors in the redox species. In this strategy, recombination loss can be greatly avoided by coating an inorganic ultra-thin layer onto the TiO 2 or adding organic compounds in the electrolyte to form a blocking layer on the TiO 2 surface[172][173][174][175].However, the issue which cannot be easily ignored is that the additional additivesenhanced V oc , but simultaneously reduced J sc . For the CE, the recombination loss may possibly lessened by the reduction of I ଷ ି concentration and increase of I ି concentration in the electrolyte.…”

mentioning

confidence: 99%

Review on the recent progress of carbon counter electrodes for dye-sensitized solar cells

Chen

Shao

2016

Chemical Engineering Journal

188

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“…The V oc increment was about 135-140 mV, meanwhile the ff was enhanced from 0.57 for the liquid electrolyte to about 0.65 for the gelled electrolytes. The increase of V oc and ff with gel electrolytes for both P(VP-co-AN) and P(VIM-co-AN) solidified EC/PC/KI/I 2 electrolytes is due to the influence of pyridine [2,11] and imidazole [12,13] groups of the copolymers. The analogical V oc and ff for gel electrolytes A, B, C and D (V oc = 683, 686, 672 and 684 mV, ff = 0.66, 0.64, 0.63 and 0.65, in sequence) attested the similar effect of pyridine and imidazole backbone polymers in DSSCs with chemically crosslinked electrolytes.…”

Section: Photovoltaic Performances Of Dsscs Based On Gel Electrolytesmentioning

confidence: 93%

“…benzimidazole both are effective additives in electrolytes for improving V oc and fill factor (ff) of DSSCs, due to the adsorption of pyridine or imidazole groups on TiO 2 surface which suppresses the recombination of photogenerated electrons from TiO 2 to triiodine in the electrolyte [2,[11][12][13] . The observation in Hayase's system suggested that this effect also worked in a chemically crosslinked electrolyte system while Yanagida's results seemed somewhat different.…”

Section: Physical Chemistrymentioning

confidence: 99%

Quasi-solid state dye-sensitized solar cells based on pyridine or imidazole containing copolymer chemically crosslinked gel electrolytes

Feng

Fang

et al. 2007

CHINESE SCI BULL

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Quasi-solid state dye-sensitized solar cells based on chemically crosslinking with backbone polymers of poly(vinylpyridine-co-acrylonitrile) (P(VP-co-AN)) or poly(vinylimidazole-co-acrylonitrile) (P(VIM-co-AN)) and diiodide compounds of I(CH 2 ) 6 I or I(CH 2 CH 2 O) n CH 2 CH 2 I solidified EC/PC/KI/I 2 gel electrolytes have been fabricated. The ionic conductivities and apparent diffusion coefficients of I 3 − of the electrolytes and cell performances have been investigated. Providing chemically crosslinking points, pyridine or imidazole from the backbone polymers benefited the open circuit voltage and fill factor of the cells. Consequently, the overall energy conversion efficiencies of the quasi-solid DSSCs improved over 10% even near 20% from that of the liquid electrolyte before solidification. Besides, the employing of crosslinker I(CH 2 CH 2 O) n CH 2 CH 2 I showed higher electrolytic and cell characters than that of I(CH 2 ) 6 I.dye-sensitized solar cells, polymer electrolytes, polymer chemically crosslinking, energy conversion efficiency Dye-sensitized solar cells (DSSCs) based on nanocrystalline porous TiO 2 films and electrolytes containing triiodide/iodide redox couple have attracted great scientific and technological interests as potential alternatives to traditional photovoltaic devices [1][2][3] . (Quasi) Solid DSSCs facilitate the cell practical use due to an elimination of electrolyte leakage, cell sealing, etc. [4,5] . However, the overall energy conversion efficiencies of (quasi) solid DSSCs are usually lower than liquid DSSCs, mainly due to a bad interfacial contact between (quasi) solid electrolytes and TiO 2 porous film electrodes [4,5] .Recently, quasi-solid DSSCs based on in situ chemically crosslinked gel electrolytes have attracted interests in the sight of improving electrolyte/TiO 2 interfacial contact. Firstly, the fluidity of the precursor electrolytes benefited the electrolyte penetration into TiO 2 porous film. Secondly, quaterization reactions proceeded in the presence of triiodide/iodide redox couple, thus liquid electrolytes could be solidified in situ of the cells [6][7][8][9][10] .Backbone polymers of polyvinylpyridine (PVP) or alkylbis(immidazole)s and crosslinkers of halogen derivatives in situ chemically crosslinking ionic liquid electrolytes were reported by Hayase [6][7][8] and Yanagida [9] groups respectively. A 40-80 mV increased open circuit voltage (V oc ) compared with the corresponding ionic liquid electrolytes has been found for Hayase's PVP chemically crosslinked gel electrolytes [7] . While for Yanagida's imidazole system, a large V oc was first observed for the precursor electrolyte but subsequently decreased after solidification to the same value as that of the ionic liquid electrolyte [9] . It is known that pyridine derivatives such as 4-tert-butylpyridine and imidazole derivatives such as N-methyl-

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Influence of alkylpyridine additives in electrolyte solution on the performance of dye-sensitized solar cell

Cited by 111 publications

References 16 publications

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]

Review on the recent progress of carbon counter electrodes for dye-sensitized solar cells

Quasi-solid state dye-sensitized solar cells based on pyridine or imidazole containing copolymer chemically crosslinked gel electrolytes

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Influence of alkylpyridine additives in electrolyte solution on the performance of dye-sensitized solar cell

Cited by 111 publications

References 16 publications

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)2(NCS)(4‐tert‐butylpyridine)][N(Bu)4] and [Ru(LH)2(NCS)(1‐methylbenzimidazole)][N(Bu)4]

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)2(NCS)(4‐tert‐butylpyridine)][N(Bu)4] and [Ru(LH)2(NCS)(1‐methylbenzimidazole)][N(Bu)4]

Review on the recent progress of carbon counter electrodes for dye-sensitized solar cells

Quasi-solid state dye-sensitized solar cells based on pyridine or imidazole containing copolymer chemically crosslinked gel electrolytes

Contact Info

Product

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Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]

Photovoltaic Performance and Characteristics of Dye‐Sensitized Solar Cells Prepared with the N719 Thermal Degradation Products [Ru(LH)₂(NCS)(4‐tert‐butylpyridine)][N(Bu)₄] and [Ru(LH)₂(NCS)(1‐methylbenzimidazole)][N(Bu)₄]