RARE-EARTH EXCITED-STATE QUENCHING AS A PROBE TO EXCIPLEX FORMATION IN POLYETHYLENE PHTHALATE DOPED WITH THE EU(PYA)32H2O COMPLEX

Authors
DEAZEVEDO WM DOSANJOS PNM MALTA OL DESA GF
Citation
Wm. Deazevedo et al., RARE-EARTH EXCITED-STATE QUENCHING AS A PROBE TO EXCIPLEX FORMATION IN POLYETHYLENE PHTHALATE DOPED WITH THE EU(PYA)32H2O COMPLEX, Journal of luminescence, 60-1, 1994, pp. 493-496
Citations number
7
Categorie Soggetti
Optics
Journal title
Journal of luminescence → ACNP
ISSN journal
00222313
Volume
60-1
Year of publication
1994
Pages
493 - 496
Database
ISI
SICI code
0022-2313(1994)60-1:<493:REQAAP>2.0.ZU;2-0
Abstract
We present and discuss the results of lifetime measurements of the lum inescence of polyethylene phthalate containing the Eu(pya)3.2H2O compl ex (pya = pyrazine carboxylate). The variation of the lifetime of the 5D0 level of the Eu3+ ion with the excitation wavelength is attributed to the formation of an exciplex involving the pya and polymer chain.