Effect of solvents in liquid electrolyte on the photovoltaic performance of dye-sensitized solar cells

Wu, Jihuai; Lan, Zhang; Lin, Jianming; Huang, Miaoliang; Li, Pinjiang

doi:10.1016/j.jpowsour.2007.04.085

Cited by 76 publications

(68 citation statements)

References 38 publications

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“…Based on the principal operation of DSSCs, the time scales of charge-transfer process should be discussed. As shown in Fig.2, electron injection and dye regeneration lead to the photoinduced charge separation and the lifetime is typically on a femto-to nanosecond or microsecond time scale, while the redox capture of the electron by the oxidized relay and the electron migration across the nanocrystalline TiO 2 film take place within milliseconds or even seconds [46,51]. between the electron transport and the interfacial recombination [50,52].…”

Section: Operational Principles Of Dsscsmentioning

confidence: 99%

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

Chen

Shao

2016

Chemical Engineering Journal

190

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Section: Operational Principles Of Dsscsmentioning

confidence: 99%

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

Chen

Shao

2016

Chemical Engineering Journal

190

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“…The preparation of TiO 2 colloidal paste and double-layer film was the same as previously reported [17,19]. The TiO 2 colloidal paste was used to fabricate the transparent film about 10 m.…”

Section: Preparation Of Electrodes and Assembling Of Dyesensitized Somentioning

confidence: 99%

“…For example, the addition of 4-tert-butylpyridine into electrolytes could increase the open-circuit voltage of DSSC, which is attributed to a shift of the TiO 2 band edge toward negative potential and to an increase of the electron lifetime [16]. While it also causes the decrease of short-circuit current density, as the changed TiO 2 band edge results in the decrease of driving force for the excited dye injecting photo-electrons to the conduction band of TiO 2 [17]. The addition of LiI into electrolytes could increase the shirt-circuit current density of DSSC while decrease the open-circuit voltage, as the adsorption of Li + on the TiO 2 surface forms Li + -e  ambipolar, which is beneficial for increasing the transporting speed of photo-electrons in the conduction band of TiO 2 film, while it also increases the dark reaction between Li + -e  and I 3  [18].…”

Section: Introductionmentioning

confidence: 99%

A highly efficient electric additive for enhancing photovoltaic performance of dye-sensitized solar cells

Lan

Lin

et al. 2010

Sci. China Chem.

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N-cetylpyridinium iodide (N-CPI) as a new electric additive for enhancing photovoltaic performance of the dye-sensitized solar cell (DSSC) was studied. It showed high efficiency for enhancing both the open-circuit voltage and the short-circuit current density of DSSC when the suitable amount of N-CPI as 0.02 M was added in liquid electrolyte. The energy conversion efficiency of DSSC increased from 4.429% to 6.535%, with 47.55% enhancement. Therefore, it is a highly efficient electric additive for DSSC. The intrinsic reason is owing to the special molecular structure of N-CPI, which contains two different polarity groups. As a surfactant, N-CPI could form ordered arrangement in liquid electrolyte, which affects the diffusing ability and the redox reaction of I  /I 3  , and further affects the photovoltaic performance of DSSC.dye-sensitized solar cell, electric additive, photovoltaic performance, N-cetylpyridinium iodide, D app

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“…Therefore, the electrolyte is an essential component of DSSCs and its development is particularly important for further progress and commercialisation of DSSCs. In order to achieve high cell power conversion efficiencies, the electrolyte has to fulfil certain criteria including appropriate viscosity, high diffusion coefficient, high electrochemical and thermal stability, low vapour pressure and ease of sealing (Wei, 2010;Wu et al, 2007a). Traditional DSSC technology generally uses volatile solvent based electrolytes (Nogueira et al, 2001;Nogueira et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The optimisation of dye sensitised solar cell working electrodes for graphene and SWCNTs containing quasi-solid state electrolytes

et al. 2014

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Publication informationSolar Energy, 110 (2014): 239-246 Publisher ElsevierItem record/more information http://hdl.handle.net/10197/6108 Publisher's statement þÿ T h i s i s t h e a u t h o r s v e r s i o n o f a w o r k t h a t w a s a c c e p t e d f o r p u b l i c a t i o n i n S o l a r E n e r g y .Changes resulting from the publishing process, such as peer review, editing, corrections, Highlights• Graphene & CNT based quasi-solid state electrolytes for dye sensitised solar cells.• Charge transfer resistances at counter electrode reduced by almost a factor of 50.• Optimisation of DSSC working electrodes for quasi-solid state electrolytes.• Significant performance improvement for quasi-solid state DSSC is achieved. AbstractIn this study, we report improved power conversion efficiencies of various carbon based quasi-solid state electrolytes/DSSCs by optimising the thickness of TiO 2 layer, incorporation of TiO 2 scattering layer and application of dense compact surface layers of TiO 2 on working electrodes. Single wall carbon nanotube (SWCNT) based quasi-solid state electrolytes showed increased power conversion efficiencies from 1.43 % to 3.49 %. For the mixture of graphene and SWCNTs the power conversion efficiencies improved from 2.50 % to 2.93 %.However, graphene based quasi-solid state electrolytes displayed small decreases in power conversion efficiencies from 2.10 % to 1.96 % due to the more viscous nature of this electrolyte. Electrochemical Impedance Spectroscopy (EIS) demonstrated that the addition of these various carbon based nanomaterials into PMII significantly decreases the charge transfer resistance at the counter electrode and hence the much better performance obtained with carbon based quasi-solid state electrolytes compared to pure PMII based DSSCs.

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Effect of solvents in liquid electrolyte on the photovoltaic performance of dye-sensitized solar cells

Cited by 76 publications

References 38 publications

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

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

A highly efficient electric additive for enhancing photovoltaic performance of dye-sensitized solar cells

The optimisation of dye sensitised solar cell working electrodes for graphene and SWCNTs containing quasi-solid state electrolytes

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