A novel TiO2 nanowires/nanoparticles composite photoanode with SrO shell coating for high performance dye-sensitized solar cell

► TiO2 nanowire/nanoparticle composite photoanode with SrO shell is prepared. ► The composite photoanode PW10 obtains high conversion efficiency (η) of 6.27%. ► SrO shell on composite photoanode can further improve η to 6.91%.