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Sriharan, N.,Ganesan, N.M.,Kang, Misook,Kungumadevi, L.,Senthil, T.S. North-Holland 2019 Materials letters Vol.237 No.-
<P><B>Abstract</B></P> <P>Novel architecture like TiO<SUB>2</SUB> nanorod arrays (TNR) incorporating α-alumina (ATNR) thin film have been fabricated on the fluorine-doped tin oxide (FTO) by a modest and flexible doctor-blade technique based hydrothermal method. α-Al<SUB>2</SUB>O<SUB>3</SUB>, TNR and ATNR were used as a photoanode in dye-sensitized solar cells (DSSCs) and their photovoltaic performance was evaluated. The crystallinity, presence of α-Al<SUB>2</SUB>O<SUB>3</SUB> on TNR and morphology of the photoanodes were characterized by X-ray diffraction, field emission scanning microscopy and high-resolution transmission scanning microscopy. DSSCs fabricated with 1.0 wt% α-Al<SUB>2</SUB>O<SUB>3</SUB> added TNR exhibited an improved open-circuit photo voltage of 0.68 V, short-circuit current density of 15.23 mA cm<SUP>−2</SUP>, fill factor of 0.63 and photo-electric conversion efficiency (PCE) of 6.5%.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Novel architecture titanium dioxide nanorod arrays incorporated alpha alumina. </LI> <LI> Synthesized samples were used as a photoanode in dye-sensitized solar cells. </LI> <LI> Presence of nanorod arrays in alumina has been confirmed by electron microscopies. </LI> <LI> Short-circuit current increases with alumina nanocrystals on titania nanorod arrays. </LI> <LI> Photo-electric conversion efficiency of the device reached 6.5%. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>