Efficient infiltration of low molecular weight polymer in nanoporous TiO2.

Erik Johansson, Sulena Pradhan, Ergang Wang, Eva Unger, Anders Hagfeldt, Mats R. Andersson

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    The polymer APFO3 was prepared with different molecular weights to study how the infiltration into nanoporous TiO2 films of different thickness depends on the size of the polymer. Also two different sizes of TiO2 nanoparticles were investigated to understand the effect of different pore size. It was observed that the lowest molecular weight polymer dissolved in chlorobenzene could infiltrate the nanoporous TiO2 network up to several micrometer thick films. It was concluded that efficient polymer infiltration into thick nanoporous layers was possible for the polymers with an estimated average chain length smaller than the diameter of the nanoparticles.

    Original languageEnglish
    Pages (from-to)225-230
    Number of pages6
    JournalChemical Physics Letters
    Volume502
    Issue number4-6
    DOIs
    Publication statusPublished - 27 Jan 2011

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