Efficient infiltration of low molecular weight polymer in nanoporous TiO2

• The polymer APFO(3) 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.

Subject headings

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Keyword

heterojunctions

nanoparticles

oxide

photovoltaic applications

properties

sensitized solar-cells

device performance

organic-dye

hole conductor

films

interfacial

Chemistry

Publication and Content Type

art (subject category)

ref (subject category)