P.H.M. Van Loosdrecht, R.D. Johnson, et al.
Physical Review Letters
We have measured the spectra and lifetimes of the emission near 1.5 μm from Er3+ ions within the recently discovered endohedral metallofullerene family ErxSc3-xN@C80. These molecules consist of a highly symmetric C80 (Ih) fullerene cage containing a triangular tri-metal nitride group. The measured emission decay lifetimes, the first reported for ions in endohedral fullerenes, are all in the range 1.1-1.6 s, showing that for the present species the quantum efficiency for emission is ~10-4. High-resolution emission spectra at 1.6 K show sharp features that differ for the Er1, Er2 and Er3 species and provide information about the structural differences among them. © 2001 Elsevier Science B.V.
P.H.M. Van Loosdrecht, R.D. Johnson, et al.
Physical Review Letters
R.M. MacFarlane, J.-C. Vial
Physical Review B
T. Hebert, R. Wannemacher, et al.
Applied Physics Letters
R.M. MacFarlane, R.M. Shelby, et al.
Physical Review Letters