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Nanostructured composite films for dye-sensitized solar cells by electrostatic layer-by-layer deposition
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Physical Chemistry (closed 20110630). KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD.
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2006 (English)In: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 18, no 23, 5395-5397 p.Article in journal (Refereed) Published
Abstract [en]

The possibilities for making nanocomposite semiconductor films for DSC using the ELBL method was investigated. Coated slides were cut in half vertically giving two strips that can be subjected to different treatments for comparison. The electrode was heated to 450 °C for 30 min and then Cooled to 80 °C. Scanning electron microscopy of a sintered film with 5 cycles of TiO2 nanoparticles shows that the particles are well distributed and completely cover the transparent conducting oxide substrate. Spectroscopic measurements of a dye-coated film in acetonitrile found a dye concentration within the film of 0.15 mM based on an extinction coefficient. The solar cell including a scattering layer had more than double the current of the transparent layer-only cell. It was observed that ELBL method can produce TiO2 films for DSC with high efficiencies at low thickness.

Place, publisher, year, edition, pages
2006. Vol. 18, no 23, 5395-5397 p.
Keyword [en]
Acetonitrile, Differential scanning calorimetry, Dyes, Heat treatment, Nanostructured materials, Scanning electron microscopy, Solar cells, Titanium oxides, Electrostatic layer by layer deposition (ELDL), Extinction coefficient, Scattering layer, Semiconducting films
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Chemical Sciences
URN: urn:nbn:se:kth:diva-155970DOI: 10.1021/cm061679uISI: 000241808600003ScopusID: 2-s2.0-33845261577OAI: diva2:766122

QC 20141126

Available from: 2014-11-26 Created: 2014-11-17 Last updated: 2015-10-13Bibliographically approved

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Agrios, Alexander George
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Physical Chemistry (closed 20110630)Centre of Molecular Devices, CMD
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