(Springer Theses) 1st ed. 2019 Edition
by Shun Omagari (Author)
This book describes the
luminescence mechanism of polynuclear lanthanide complexes, focusing on
energy transfer processes using a combination of experimental and
theoretical approaches.
Lanthanide complexes show intense
luminescence from the lanthanide ion through sensitization by the
organic ligands. The high chromaticity of the emission and the long
lifetimes of the complexes are particularly attractive for applications
such as organic light-emitting diodes and bioprobes. Polynuclear
lanthanide complexes (coordination polymers and clusters) have attracted
considerable interest for functionalization by energy transfer between
lanthanide ions. At the same time, such extra processes complicate the
luminescence mechanism, hindering the rational design of functional
polynuclear lanthanide complexes.
Firstly, the book explains the
principle of the theoretical methods, and then describes the
concentration-quenching mechanism in coordination polymers. It also
examines the effect of intrinsic spin–orbit coupling arising from
lanthanide ions on the ligand-to-lanthanide energy transfer efficiency
and the mechanism of back energy transfer (the opposite of sensitizing
energy transfer) in lanthanide clusters. This sets the stage for the
final topic: the suppression of back energy transfer by energy transfer
between lanthanide ions in lanthanide clusters, which is of critical
importance, showing that the lanthanide clusters can be considered a new
generation of functional and efficient luminescent material and could
also provide a breakthrough in lanthanide photophysics.
