Journal
PHYSICA B-CONDENSED MATTER
Volume 327, Issue 1, Pages 79-87Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4526(02)01705-2
Keywords
disordered system; energy transfer; phonon; photoluminescence; glass
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The Nd3+, Cr3+-single doped-and their codoped-lead silicate glasses (SiO2-Na2CO3-ZnO-PbO) have been synthesized by means of fusion method. Their properties are studied by means of optical absorption and photoluminescence. In Cr3+/Nd3+-codoped glasses, a strong enhancement of emission band A (B) of Nd3+ ions centered at 810 nm (890 nm) at low (high) temperature has been observed. It is attributed to non-radiative energy transfer process between donor (Cr3+) and acceptor (Nd3+) mediated by localized phonons. In the regime of low temperature, the radiative energy transfer process between Nd3+ and Cr3+ ions plays an important role in determining the optical properties of rare-earth doped glasses. (C) 2002 Elsevier Science B.V. All rights reserved.
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