Dynamic preparation of TiO2 films for fabrication of dye-sensitized solar cells

Santa-Nokki, Henriette; Kallioinen, Jani; Kololuoma, Terho; Tuboltsev, Vladimir; Korppi-Tommola, Jouko

doi:10.1016/j.jphotochem.2006.02.011

Cited by 59 publications

(35 citation statements)

References 52 publications

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“…One of the main reasons is its ability to create more homogeneous thin films than the other printing techniques due to the low viscosity of the ink [25,29]. For this reason gravure printing is used in solar cells [30][31][32] and OFETs [12,14,25,33,34] for the deposition of semiconductor and dielectric films. Furthermore there is a chance to reduce the dimensions of printed electronic devices due to the ongoing improvements in the field of manufacture of printing plates.…”

Section: Printing Technologies For Organic Electronic Devices and Cirmentioning

confidence: 99%

Uniformity of fully gravure printed organic field-effect transistors

Hambsch

Reuter

Stanel

et al. 2010

Materials Science and Engineering: B

108

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Section: Printing Technologies For Organic Electronic Devices and Cirmentioning

confidence: 99%

Uniformity of fully gravure printed organic field-effect transistors

Hambsch

Reuter

Stanel

et al. 2010

Materials Science and Engineering: B

108

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“…In this method, the contact formation between the neighboring nanoparticles in the films is obtained by simple and rapid static [24,[53][54][55][56][57][58][59] or dynamic [24,60] [61]. The spray deposition is furthermore an effective means to avoid cracking of the film during drying, a phenomenon similar to the well-known cracking of clay [62].…”

Section: Plastic Pesmentioning

confidence: 99%

Nanostructured dye solar cells on flexible substrates-Review

Toivola¹,

Halme²,

Miettunen³

et al. 2009

Int. J. Energy Res.

113

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SUMMARYThis review presents an overview of the current state of research on nanostructured titanium dioxide dye solar cells (DSCs) on alternative substrates to glass. Replacing the traditionally used heavy, rigid, and expensive glass substrate with materials such as plastic foils or metal sheets is crucial to enable large volume cost-efficient roll-to-roll type industrial scale manufacturing of the cells and to make this solar cell technology properly competitive with silicon and thin film photovoltaic devices. One of the biggest problems with plastic substrates is their low-temperature tolerance, which makes sintering of the photoelectrode films impossible, whereas with metals, their corrosion resistance against the iodine-containing electrolyte typically used in DSCs limits the amount of metal materials suitable for substrates. However, significant progress has been made in developing new materials, electrode film deposition and post-treatment methods suitable for low-temperature processing. Also, metals that do not corrode in the presence of iodine electrolyte have been found and successfully employed as DSC substrates. The highest power conversion efficiencies obtained with plastic and metal substrates are already 7-9%, which is not far from the best glass cell efficiencies, 10-11%, and comparable also to, for example, amorphous silicon solar cell efficiencies. One of the most important of the remaining research challenges of DSCs on flexible substrates is to ensure that the long-term stability of the cells is realistic to consumer applications, for example, with providing efficient enough encapsulation to prevent water and other impurities penetration into the cells. Degradation mechanisms specific to metal-based cells are another issue that needs deeper understanding still. More exotic approaches such as depositing the DSC structure on optical fiber or employing carbon nanomaterials to increase the cell efficiency are also discussed in this paper.

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“…A typical electrolyte contains at least iodide/triiodide redox pair (I -/I -3 ), lithium ions (Li + ) and tert-butylpyridine (tBP ) [18,22]. In the semiconductor nanoparticles, free electrons can be trapped to localised energy states [8].…”

Section: Relevant Substancesmentioning

confidence: 99%