Electrical characterisation of dye sensitised nanocrystalline TiO2 solar cells with liquid electrolyte and solid-state organic hole conductor

Kron, Gerald E.; Egerter, T.; Nelles, Gabriele; Yasuda, Akio; Werner, Jürgen; Rau, Uwe

doi:10.1016/s0040-6090(01)01590-5

Cited by 38 publications

(25 citation statements)

References 15 publications

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“…The open-circuit voltage drops from 10 to 23 C and thereafter decreases only slightly, meaning that it can be considered practically constant. A V oc drop with increasing temperature has been detected and analyzed previously, [12] and it is considered to be a complex function of the semiconductor Fermi level and electrolyte redox potential as well as the recombination rates of the electron±hole couples. The efficiency of the cell increased with temperature, although the variation is small in the range 23±70 C, and it reached high values, ³ 5.3 %, which is a very encouraging value for a quasi-solid-state cell.…”

Section: Full Papermentioning

confidence: 99%

Optimization of a Quasi‐Solid‐State Dye‐Sensitized Photoelectrochemical Solar Cell Employing a Ureasil/Sulfolane Gel Electrolyte

Σταθάτος

Lianos²,

Vuk

et al. 2004

Adv Funct Materials

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A quasi‐solid‐state, dye‐sensitized photoelectrochemical solar cell employing a gel electrolyte obtained by sol–gel chemistry is described. The gel electrolyte is based on a ureasil precursor (i.e., a poly(propylene oxide) oligomer end‐capped by triethoxysilane groups through urea bridges) and sulfolane and it incorporates the I3–/I– redox couple. It is shown that the combination of these two reagents prevents crystallization of KI, thus ensuring a long life for the cell and a satisfactory overall efficiency that surpasses 5 %. Cell efficiency increases with temperature. Optimization of gel‐electrolyte performance has been obtained by studying mobility with fluorescence‐quenching techniques complemented by direct‐current conductivity measurements.

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Section: Full Papermentioning

confidence: 99%

Optimization of a Quasi‐Solid‐State Dye‐Sensitized Photoelectrochemical Solar Cell Employing a Ureasil/Sulfolane Gel Electrolyte

Σταθάτος

Lianos²,

Vuk

et al. 2004

Adv Funct Materials

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“…Presently, DSSC can achieve as much as 10% energy conversion efficiency (Gratzel, 2001). The ongoing research and development focus on new DSSC materials for higher cell efficiency and theoretical modelling for insightful understanding of the basic working mechanisms (Ruile et al, 1997;Gratzel, 2000;Kron et al, 2002Kron et al, , 2003aKron et al, , 2003bRau et al, 2003;Durr et al, 2004;Fredin et al, 2005;Lenzmann et al, 2005;Gratzel, 2006;Ito et al, 2006;Kroon et al, 2006;Kumara et al, 2006;Ni et al, 2006a;Pettersson et al, 2006;Sastrawan et al, 2006). Some studies have been conducted to determine the effect of the TiO 2 electrode thickness on the DSSC performance.…”

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confidence: 99%

Theoretical modelling of the electrode thickness effect on maximum power point of dye‐sensitized solar cell

Leung

2008

Can J Chem Eng

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The maximum power point (MPP) of a dye‐sensitized solar cell (DSSC) is often more important than the open‐circuit voltage and the short‐circuit current as MPP better represents the DSSC power output and energy conversion efficiency. In this investigation, the DSSC J–V characteristics and MPP were studied using a simple theoretical electron diffusion model. Parametric analyses were performed to determine the particular effect of electrode thickness on the MPP output. The analytical results are well consistent with the experimental results published in the literature. In the optimization analysis, it was specially found that the optimal electrode thickness for the highest MPP is rather insensitive to the operating conditions. It implies that an optimally designed DSSC can be always operated at its highest MPP regardless of any geographical, seasonal, and solar hour factors. Such an important attribute facilitates the design and manufacture of DSSC for worldwide commercialization at competitive costs.

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“…For surface analysis, a Cambridge stereoscan 250 MK-3 model operated at 15 kV was preferred. An electrical resistivity measurement was carried out by a dc two-probe method in the temperature range of 300-500 K. TiO 2 porous films were prepared on ITO substrates in our laboratory with a procedure reported by Kron et al [22]. Incorporation of PbS nanoparticles in porous TiO 2 films was confirmed in two ways; (1) actual photo-image taken by Sony Smart Zoom digital camera and (2) change in surface wettability by knowing water contact angle measurement before and after incubation.…”

Section: Methodsmentioning

confidence: 99%

Room temperature PbS nanoparticle growth, incubation in porous TiO2 electrode for photosensitization application

Patil

Lokhande

Mane

et al. 2007

Journal of Non-Crystalline Solids

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Electrical characterisation of dye sensitised nanocrystalline TiO2 solar cells with liquid electrolyte and solid-state organic hole conductor

Cited by 38 publications

References 15 publications

Optimization of a Quasi‐Solid‐State Dye‐Sensitized Photoelectrochemical Solar Cell Employing a Ureasil/Sulfolane Gel Electrolyte

Optimization of a Quasi‐Solid‐State Dye‐Sensitized Photoelectrochemical Solar Cell Employing a Ureasil/Sulfolane Gel Electrolyte

Theoretical modelling of the electrode thickness effect on maximum power point of dye‐sensitized solar cell

Room temperature PbS nanoparticle growth, incubation in porous TiO2 electrode for photosensitization application

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