Donor and acceptor state selectivity in resonant energy transfer

Sm2 [Pt(CN)4]3⋅18H2O compounds exhibit a radiationless energy transfer from linear [Pt(CN)4]2− stacks (donors) to Sm3+ cations (acceptors). A Sm3+ emission is found, resulting from the lowest excited Sm3+ state (4G5/2–4F5/2). The energy transfer is a selective process, which has been investigated by polarized emission measurements on single crystals under high pressure. As donor state we identify the lowest excited state of the stacks (mainly emitting E⊥c polarized light) while the relevant acceptor state is the Sm3+ 4F3/2 state being the second excited state.

[1]  H. Yersin,et al.  The structures of the tetracyanoplatinates, a class of quasi-onedimensional systems , 1981 .

[2]  U. Rößler,et al.  Exciton and polaran aspects in tetracyanoplatinates , 1981 .

[3]  F. Willig,et al.  Photoconductivity in Ba[Pt(CN)4]·4H2O crystals , 1981 .

[4]  W. Ammon,et al.  Time-resolved spectroscopy and energy transfer from linear [Pt(CN)4]2− chains to rare-earth cations in Ln2[Pt(CN)4]3·nH2O single crystals , 1981 .

[5]  H. Yersin,et al.  Luminescence quenching and exciton dynamics in quasi‐one‐dimensional mixed crystals: Ba[Pt1−xNix(CN)4]⋅4H2O , 1981 .

[6]  R. Powell,et al.  Energy transfer in concentrated systems , 1980 .

[7]  M. Stock,et al.  Transition energy tuning from 3.3 - 1.4 eV in the system Mx[Pt(CN)₄]•mH₂O , 1979 .

[8]  W. Ammon,et al.  Non-radiative energy transfer from tunable donor states to Eu3+ ions , 1979 .

[9]  H. Yersin,et al.  SPECTROSCOPIC STUDIES OF Mx[Pt(CN)4] · yH2O * , 1978 .

[10]  H. Yersin.  Energy transfer from linear stacks of tetracyanoplatinates(II) to rare earth ions , 1978 .

[11]  M. Stock,et al.  Polarized emission from Ba[Pt(CN)4]·4H2O single crystals under high pressure , 1976 .

[12]  R. Powell,et al.  Energy transfer in samarium-doped calcium tungstate crystals , 1975 .

[13]  E. Würzberg,et al.  Energy gap law in the solvent isotope effect on radiationless transitions of rare earth ions , 1975 .

[14]  R. Zalubas,et al.  Atomic energy levels - The rare-Earth elements , 1974 .

[15]  Robert A. Satten,et al.  Spectra and energy levels of rare earth ions in crystals , 1968 .

[16]  D. L. Dexter.  A Theory of Sensitized Luminescence in Solids , 1953 .