Direct observation of microscopic photoinduced charge redistribution on TiO[sub 2] film sensitized by chloroaluminum phthalocyanine and perylenediimide

Jian Gao; Jing-Zhi Sun; Jian Hong; Xin-Guo Yang; Hong-Zheng Chen; Mang Wang
September 2003
Applied Physics Letters;9/1/2003, Vol. 83 Issue 9, p1896
Academic Journal
The microscopic photoinduced charge redistribution on the surface of an organic dye composite layer was directly observed using Kelvin probe force microscopy (KFM) coupled with a laser source. The organic layer composed of chloroaluminum phthalocyanine and N,N[sup ′]-dioctadecyl-3,4,9,10-perylene tetracarboxylic-diimide was cast onto the surface of nano-TiO[sub 2] film. Under illumination, the surface potential morphologies of the organic layer changed from large fluctuation to relatively uniform features. Such a phenomenon was associated with the photoinduced charge transfer between the dye composite and nano-TiO[sub 2], which was rationalized in terms of energy level alignment. Considering that the KFM have been proved to be a visual technique in the characterization of nanomaterials, we have presented a method to visualize the photoinduced charge transfer in microscopic scale. © 2003 American Institute of Physics.


Related Articles

  • A single centre water splitting dye complex adsorbed on rutile TiO2(110): Photoemission, x-ray absorption, and optical spectroscopy. Weston, Matthew; Reade, Thomas J.; Britton, Andrew J.; Handrup, Karsten; Champness, Neil R.; O'Shea, James N. // Journal of Chemical Physics;9/20/2011, Vol. 135 Issue 11, p114703 

    A single centre water splitting dye complex (aqua(2,2′-bipyridyl-4,4′-dicarboxylic acid)-(2,2′:6′,6′′-terpyridine)Ruthenium(II)), along with a related complex ((2,2′-bipyridyl-4,4′-dicarboxylic...

  • Effect of salt composition on photovoltaic performance of the dye-sensitized solar cells prepared from nano anatase TiO2 powder using NaCl-Na2HPO4·2H2O salt matrices. Roy, B.; Li, L.; Aich, S. // Journal of Materials Science;Dec2011, Vol. 46 Issue 23, p7611 

    Photovoltaic performances of dye-sensitized solar cells based on mesoporous TiO2 coating of nanocrystalline anatase prepared by solid salt synthesis were investigated in this study. Three different salt compositions pure NaCl, NaCl and DSP 50-50 wt% mixture, and pure DSP have been used as the...

  • Inhomogeneous charge transfer within monolayer zinc phthalocyanine absorbed on TiO2(110). Yu, Shun; Ahmadi, Sareh; Sun, Chenghua; Adibi, Pooya Tabib Zadeh; Chow, Winnie; Pietzsch, Annette; Göthelid, Mats // Journal of Chemical Physics;4/12/2012, Vol. 136 Issue 15, p154703 

    The d-orbital contribution from the transition metal centers of phthalocyanine brings difficulties to understand the role of the organic ligands and their molecular frontier orbitals when it adsorbs on oxide surfaces. Here we use zinc phthalocyanine (ZnPc)/TiO2(110) as a model system where the...

  • Application of Nanotechnology in Textile Materials. Vinothini, C.; Malathi, M. // International Journal of Nanotechnology & Applications;2009, Vol. 3 Issue 2, p83 

    Nanotechnology has proven its importance in almost all areas, and textile industry is not an expection. The aim of the research was to explore the effect of methyl red dye, bulk/nano TiO2 and methyl red dye with bulk/nano TiO2 on antistatic and antiflammable property of commercially available...

  • XPS studies of Ru-polypyridine complexes for solar cell applications. Rensmo, H.; Westermark, K. // Journal of Chemical Physics;8/8/1999, Vol. 111 Issue 6, p2744 

    Focuses on a study of a series of ruthenium-polypyridine dyes with electron spectroscopy using synchrotron radiation. Examination of both pure complexes and complexes adsorbed on nanostructured titanium dioxide surfaces; Information concerning the energy level matching between the dyes and the...

  • Photocatalytic properties of porous titania grown by oblique angle deposition. Riley, M. J.; Williams, B.; Condon, G. Y.; Borja, J.; Lu, T. M.; Gill, W. N.; Plawsky, J. L. // Journal of Applied Physics;Apr2012, Vol. 111 Issue 7, p074904 

    High surface area nanorods of titanium dioxide were grown by oblique angle deposition on a transparent substrate to investigate their effectiveness as photocatalytic agents for the destruction of organic contaminants in air and water. Optical transmission measurements were made that allowed for...

  • DIGEST.  // Chemical Week;2/19/2003, Vol. 165 Issue 7, p50 

    Presents updates on the chemical industry, as of February 2003. Success of researchers at the University of California, Riverside to synthesized a family of sulfide and selenide zeolite analogs; Development of a novel photovoltaic cell that uses the electronic properties of dye molecules and...

  • Tip-enhanced near-field Raman spectroscopy probing single dye-sensitized TiO2 nanoparticles. Pan, Duohai; Klymyshyn, Nick; Hu, Dehong; Lu, H. Peter // Applied Physics Letters;2/27/2006, Vol. 88 Issue 9, p093121 

    The correlated metallic tip-enhanced Raman spectroscopy and atomic force microscopy (AFM) technique was used to characterize dye-sensitized titanium oxide (TiO2) nanoparticles. We have obtained the near-field Raman spectra that are associated with the photo-induced charge transfer reaction in...

  • THE EFFECT OF THE ADDITION OF NANO TIO2 ON MECHANICAL PROPERTIES OF DYED AND UNDYED NYLON 6.6. Shamey, Renzo; Sinha, Mukesh Kumar; Christie, Robert M. // Proceedings of the Annual International Conference & Exhibition ;2005, p232 

    The article describes a study about the effect of nano-grade titanium dioxide (TiO2) on photo-degradation of both undyed and dyed nylon 6.6 filaments using a xenon-arc light as the light source. In the study, scanning electron microscopy analysis was used to characterize the morphological...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics