Industrial sheet metals for nanocrystalline dye-sensitized solar cell structures

In this study the stability of dye solar cells with different kinds of metals as the photoelectrode substrate is studied. Stainless steels, Inconel and titanium substrates were tested in order to find stable substrate options. Photovoltaic characterization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and substrate polarization measurements were used in the characterization.

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“…[2][3][4] The cheapest metal that has met the basic stability requirement i.e. survived electrolyte soaking tests is stainless steel (StS) 304.…”

Section: Introductionmentioning

confidence: 99%

Stability of Dye Solar Cells with Photoelectrode on Metal Substrates

Miettunen¹,

Ruan

Saukkonen³

et al. 2010

J. Electrochem. Soc.

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“…1 Flexible stainless steel (StS) substrates are clearly cheaper compared to TCO glass 2,3 and also suitable for roll-to-roll mass production. StS has been used both as counter electrode (CE) [4][5][6][7][8] and photoelectrode (PE) substrate. 7,[9][10][11][12][13] To gain flexible DSC, transparent polymer substrates are used with metal substrates.…”

Section: Introductionmentioning

confidence: 99%

Segmented Cell Design for Improved Factoring of Aging Effects in Dye Solar Cells

Miettunen¹,

Halme²,

Lund³

2009

J. Phys. Chem. C

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A new segmented cell design was applied to study the aging of dye solar cell with stainless steel (StS) photoelectrode substrate, in particular the role of electrolyte in the degradation. Photovoltaic showed changes in the recombination at the photoelectrode / electrolyte interface. With the segmented cell method, we confirmed that the electrolyte was not contaminated by the StS nor was it subject to other significant changes related to the rapid degradation.

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“…Literature also shows that Cu degrades in the iodine electrolyte in a few seconds (the electrolyte changes color as it is being filled to the cells) 5 whereas here with cobalt it took longer (tens of minutes) for the visible changes to appear.…”

Section: Stability Of Metallic Electrodementioning

confidence: 96%

“…Many of them have been suggested for dye solar cells earlier to be used with iodine based electrolyte. [3][4][5][6][7][8] Earlier studies have also…”

Section: Introductionmentioning

confidence: 99%

Do Counter Electrodes on Metal Substrates Work with Cobalt Complex Based Electrolyte in Dye Sensitized Solar Cells?

Miettunen

Saukkonen

et al. 2012

J. Electrochem. Soc.

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Yes. Testing 7 different metals as a substrate for a counter electrode in dye sensitized solar cells (DSSC) showed that some metals can be a good option for use with cobalt electrolyte. It was found that Stainless steels 304 and 321 as well as Ni and Ti suit well to the counter electrodes in DSSCs with cobalt electrolyte. In these 4 cases both the efficiency and the lifetime were similar to the reference cells on conducting glass substrates. In contrast, the cells with Al, Cu and Zn substrates suffered from both a low efficiency and a poor stability. These three metals had clear marks of corrosion such as apparent corrosion products in the aged cells. Additionally, we also investigated how the different types of catalyst materials perform in the case of a metal counter electrode (stainless steel 304) with cobalt electrolyte in comparison to reference glass cells. Among the 5 different catalyst layers the best results for stainless steel electrode were achieved with low temperature platinization whereas polymer catalysts poly(3,4-ethylenedioxythiophene)-p-toluenesulfone and poly(3,4-ethylenedioxythiophene)-polystyrenesulfone that worked well on the glass worked very poorly on the metal.

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Industrial sheet metals for nanocrystalline dye-sensitized solar cell structures

Cited by 106 publications

References 23 publications

Stability of Dye Solar Cells with Photoelectrode on Metal Substrates

Stability of Dye Solar Cells with Photoelectrode on Metal Substrates

Segmented Cell Design for Improved Factoring of Aging Effects in Dye Solar Cells

Do Counter Electrodes on Metal Substrates Work with Cobalt Complex Based Electrolyte in Dye Sensitized Solar Cells?

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