caa a22 4500 463213270 CHVBK 20180405153148.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s00339-007-4232-1 doi (NATIONALLICENCE)springer-10.1007/s00339-007-4232-1 Characteristics of electrohydrodynamically prepared titanium dioxide films [Elektronische Daten] [S. Mahalingam, M.J. Edirisinghe] A titanium dioxide precursor sol flowing through a needle at a flow rate of 10-10m3 s-1 was subjected to an electric field of 4.5kV to generate droplets in the size range 0.3-6μm. The droplets were collected on a silicon substrate to form uniformly thick, dense films. Raman spectroscopy, X-ray diffraction, field emission scanning electron microscopy and UV/Vis spectroscopy were used to characterize as-deposited and annealed films. Raman spectra show the annealed films were anatase phase with annealing converting it to the rutile phase. The energy bandgap of the titanium dioxide film annealed to 500°C shows an indirect bandgap energy of 3.50eV and a direct bandgap energy of 3.95eV. Springer-Verlag, 2007 Mahalingam S. Department of Mechanical Engineering, University College London, Torrington Place, WC1E 7JE, London, UK aut Edirisinghe M.J. Department of Mechanical Engineering, University College London, Torrington Place, WC1E 7JE, London, UK aut Applied Physics A Springer-Verlag 89/4(2007-12-01), 987-993 0947-8396 89:4<987 2007 89 339 https://doi.org/10.1007/s00339-007-4232-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-4232-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mahalingam S. Department of Mechanical Engineering, University College London, Torrington Place, WC1E 7JE, London, UK aut NATIONALLICENCE 700 1- Edirisinghe M.J. Department of Mechanical Engineering, University College London, Torrington Place, WC1E 7JE, London, UK aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 89/4(2007-12-01), 987-993 0947-8396 89:4<987 2007 89 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer