High-quality Fe-doped TiO2 films with superior visible-light performance

Ren Su, Ralf Bechstein, Jakob Kibsgaard, Ronnie T. Vang, Flemming Besenbacher

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on high-quality polycrystalline Fe-doped TiO2 (Fe-TiO2) porous films synthesized via one-step electrochemical oxidation. We demonstrate that delicate properties such as the impurity concentration and the microstructure that strongly influence the performance of the material for photovoltaic and photocatalysis applications can be controlled by adjusting the electrolyte composition. Compared to Fe-doped TiO2 films prepared with traditional phosphate- or silicate-based electrolytes, our newly synthesised Fe-TiO2 films contain solely Fe dopants, which results in excellent photocatalytic and photovoltaic performance under visible light irradiation.
Original languageEnglish
JournalJournal of Materials Chemistry
Volume22
Issue number45
Pages (from-to)23755-23758
Number of pages4
ISSN0959-9428
DOIs
Publication statusPublished - 2012
Externally publishedYes

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