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Keywords:

  • Nb3O7(OH);
  • single crystal;
  • Nb2O5;
  • nanorod;
  • DSSCs
Thumbnail image of graphical abstract

Hydrothermal growth of high crystallinity Nb3O7(OH) single crystal nanorod film onto FTO substrate is directly used as the photoanode for DSSCs without calcination. The resultant DSSCs possess an impressive overall efficiency of 6.77%, the highest among all reported DSSCs assembled by niobium oxide-based photoanodes.