Optoelectronics of Cu2+-Doped TiO2 Films Prepared by Sol–Gel Method
Both undoped and Cu2+-doped TiO2 films have been prepared by sol-gel dip-coating method and characterized by UV-Vis, FTIR, and PL spectroscopy. Also, SEM images of the prepared films were to taken to analyze the surface morphology. Finally, the optoelectronic characterization of the prepared Cu2+-doped films have been performed using I–V measurements under two different light conditions. The surface plasmon resonance (SPR) bands of copper have been observed between 500 and 600 nm. Also, the variation of current under white light illumination was found to much more prominent at a particular voltage than that of dark current.
KeywordsSurface Plasmon Resonance TiO2 Film Surface Plasmon Resonance Band Titanium Isopropoxide White Light Illumination
The authors are thankful to the Department of science and Technology, New Delhi for supporting this work (project no.: SR/LOP-0039/2010).
- 6.Kuznetsov VN, Serpone N (2006) Visible light absorption by various titanium dioxide specimens. J Phys Chem B 110:25203–25209Google Scholar
- 8.Zhang JZ (2009) Optical properties and spectroscopy of nanomaterials. World Scientific Publishers, Singapore, pp 207–208Google Scholar
- 9.Dang TMD, Le TTT, Fribourg-Blanc E, Dang MC (2011) Synthesis and optical properties of copper nanoparticles prepared by a chemical reduction method. Adv Nat Sci: Nanosci Nanotechnol 2(1):015009Google Scholar