Author/Authors :
Ahmed، نويسنده , , M.H.M. and Lydiatt، نويسنده , , F.P. and Chekulaev، نويسنده , , D. and Wincott، نويسنده , , P.L. and Vaughan، نويسنده , , D.J. and Jang، نويسنده , , J.H. and Baldelli، نويسنده , , S. and Thomas، نويسنده , , A.G. and Walters، نويسنده , , W.S. and Lindsay، نويسنده , , R.، نويسنده ,
Abstract :
A procedure for wet chemical preparation of TiO2 single crystal surfaces is detailed. The potential of this procedure is demonstrated through application to rutile-TiO2(110) and rutile-TiO2(011) substrates. Characterisation with atomic force microscopy, low energy electron diffraction, auger electron spectroscopy, and vibrational sum frequency spectroscopy indicates that flat, well-ordered, carbon-free surfaces can be generated. Notably, in contrast to the (2 × 1) low energy electron diffraction pattern observed for TiO2(011) prepared in ultra-high vacuum, wet chemical preparation results in a (4 × 1) unit cell; wet chemically prepared TiO2(110) displays an unreconstructed (1 × 1) surface.
Keywords :
metal oxide , Low miller index single crystal surface , surface structure , Wet chemical preparation , surface composition
