Synthesis of carbon nanotube/TiO2 composites by titanium evaporation in ultra high vacuum ambient

► Growth of TiO2/CNT composite by an evaporation technique in UHV ambient. ► In the composite growth we observe chemical bonds formation only between oxygen and Ti atoms. ► The TiO2 film appears highly homogeneous and with a thickness of about 1.5 micron. ► Absence of luminescence emission from composites indicates the absence of oxygen vacancies defects.