Luminescent properties of thin Bi2WO6 films

O.M.Bordun, A.T.Stetskiv

I.Franko Lviv State University, 50 Dragomanov St., 79005 Lviv, Ukraine

Received May 12, 1999

Photoexcitation and luminescence spectra of thin Bi2WO6 films have been investigated under photo-, laser, and X-ray excitation. Using the Alentsev-Fock method, the luminescence spectra have been subdivided into elementary components. Luminescence spectra of thin Bi2WO6 films have been found to consist of three bands with maxima at 2.93, 2.35 and 1.9 eV, respectively. It has been determined that the luminescence band with a maximum at 2.35 eV is a superposition of two close bands. An interpretation of bands separated has been considered.

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