kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Strong interactions in dye-sensitized interfaces
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.ORCID iD: 0000-0002-9663-7705
Show others and affiliations
2008 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 112, no 15, p. 5972-5977Article in journal (Refereed) Published
Abstract [en]

Phthalocyanines (Pcs) are capable of converting sunlight into electric energy when adsorbed on TiO2 in a dye-sensitized solar cell. Of special interest in this type of cell is the energy level alignment as well as how molecules adsorb on the surface as it determines the output of the cell. We investigated the FePc-TiO2(110) interface using scanning tunneling microscopy, synchrotron-based photoelectron spectroscopy, and X-ray absorption spectroscopy. We found a strong coupling of the first-layer FePc to the substrate resulting in an alteration of the electronic structure and charge transfer from the molecules. The FePc in the second layer is not severely affected by the bonding to the surface and has bulk-like electronic properties. The growth of FePc thin films proceeds in a layer plus island mode, and the molecular plane is parallel to the surface. The energy level alignment at the interface is determined, and the lowest unoccupied molecular orbital is found above the conduction band minimum of the oxide substrate.

Place, publisher, year, edition, pages
2008. Vol. 112, no 15, p. 5972-5977
Keywords [en]
SCANNING-TUNNELING-MICROSCOPY; COPPER-PHTHALOCYANINE; IRON PHTHALOCYANINE; THIN-FILMS; PHOTOELECTRON-SPECTROSCOPY; ZINC PHTHALOCYANINE; ELECTRON-TRANSFER; TITANIUM-DIOXIDE; SOLAR-CELLS; TIO2 FILMS
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-36415DOI: 10.1021/jp711311sISI: 000254883100042Scopus ID: 2-s2.0-43749099257OAI: oai:DiVA.org:kth-36415DiVA, id: diva2:430774
Note
QC 20110712Available from: 2011-07-12 Created: 2011-07-12 Last updated: 2023-03-08Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Yu, Shun

Search in DiVA

By author/editor
Palmgren, PålYu, ShunNlebedim, Cajetan IkennaGötelid, Mats
By organisation
Microelectronics and Applied Physics, MAP
In the same journal
The Journal of Physical Chemistry C
Other Engineering and Technologies

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 86 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf