The Research On Photovoltaic Systems Composed Of Polyoxometalates And Polymers

A spherical keplerate {W₇₂V₃₀} acts as the electron acceptor in a photovoltaic system forthe first time. It is a promising alternative electron acceptor to the traditional electron acceptorfullerene （C60）. A water-soluble PPV derivative（P2） was chosen to be a new kind of electrondonor in this photovoltaic system. The photovoltaic film was composed of anionic POMs({W₇₂V₃₀}) and cationic P2were fabricated by the layer-by-layer（LbL） self-assembly method.It was characterrized by UV-Vis spectra, X-Ray photoelectron spectra, photoluminescencespectrum, atomic force microscopy and photoelectrochemical measurements, showingsignificant photocurrent response. This work represents a promising strategy in designingpolymer photovoltaic devices in future.