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Characterisation of species of triplet miniclusters in the system N-h8/N-d8. Cluster—cluster interactions and model inhomogeneous distributions in a two-dimensional lattice

Authors
Journal
Chemical Physics
0301-0104
Publisher
Elsevier
Publication Date
Volume
35
Issue
3
Identifiers
DOI: 10.1016/s0301-0104(78)85232-x
Disciplines
  • Mathematics

Abstract

Abstract A full spectroscopic characterisation of triplet miniclusters of N- h 8 in a crystai of N- d 8 and their interactions via the lattice states is presented in a two-dimensional lattice. Triplet mini-exciton energy levels, transition moments and polarisations are calculated. A randon trial model is used to calculate the effective (spectroscopic) concentration of the different clusters and their topology (spatial distribution and orientation in a two-dimensional 100 × 100 lattice, Spectra, and cluster—cluster couplings leading to transfer or exciton fusion are calculated for local concentrations. It is shown that the average concentration is a very poor parameter for predicting cluster-cluster interactions or cluster spectra lineshapes. The knowledge of inhomogeneity of traps is also important when direct excitation of triplet traps is performed.

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