Jump to main content
Jump to site search

Issue 7, 2007
Previous Article Next Article

Novel emission properties of melem caused by the heavy metal effect of lanthanides(III) in a LB film

Author affiliations

Abstract

A novel emissive molecular system is constructed by the intercalation of the fluorophore melem (triamino-tri-s-triazine) within a Langmuir–Blodgett (LB) film of stearic acid with the periodic arrangement of lanthanides (Ln(III)), mainly Pr(III) with supporting of Eu(III). From emission spectra, decay curves, quantum yields and XPS measurements, it is clarified that the external heavy metal effect of Pr(III) on melem is much stronger in the film than in the bulk solid state, resulting in producing an unusual triplet state of melem. The triplet state of melem in the LB film donates the excitation energy to Pr(III) in the LB film, which is completely different from the energy transfer pathway of Pr–melem complex in the solid state through the singlet state of melem.

Graphical abstract: Novel emission properties of melem caused by the heavy metal effect of lanthanides(iii) in a LB film

Back to tab navigation

Publication details

The article was received on 12 Mar 2007, accepted on 10 May 2007 and first published on 23 May 2007


Article type: Paper
DOI: 10.1039/B703751C
Photochem. Photobiol. Sci., 2007,6, 804-809

  •   Request permissions

    Novel emission properties of melem caused by the heavy metal effect of lanthanides(III) in a LB film

    A. Ishii, K. Habu, S. Kishi, H. Ohtsu, T. Komatsu, K. Osaka, K. Kato, S. Kimura, M. Takata, M. Hasegawa and Y. Shigesato, Photochem. Photobiol. Sci., 2007, 6, 804
    DOI: 10.1039/B703751C

Search articles by author

Spotlight

Advertisements