Details of the structure of bound excitons and bound multiexciton complexes in Si

1977 ◽  
Vol 55 (17) ◽  
pp. 1463-1480 ◽  
Author(s):  
M. L. W. Thewalt
Keyword(s):  
High Resolution ◽  
Shell Model ◽  
Excited States ◽  
Photoluminescence Spectra ◽  
Luminescence Line ◽  
Donor And Acceptor

The high resolution photoluminescence spectra reported here reveal new details of the structure of both bound excitons and bound multiexciton complexes in donor and acceptor doped Si. The bound exciton and bound multiexciton complexes in Si containing P impurities are found to have excited states, as was postulated in a recent shell-model of the bound multiexciton complexes. Several new features of the luminescence due to bound excitons and bound multiexciton complexes in acceptor doped Si are also found to be in agreement with the shell-model. In contrast to previous studies, we find no reason to doubt the original bound multiexciton complex explanation of the luminescence line series which are seen in lightly doped Si. The implications of these results are also discussed in relation to previously reported interpretations of the photoluminescence spectra of donor-doped Ge.

scholarly journals GDR Contribution to Coulomb Excitation. II. 17O

1982 ◽  
Vol 35 (3) ◽  
pp. 301 ◽  
Author(s):  
FC Barker
Keyword(s):  
Excited State ◽  
Shell Model ◽  
Excited States ◽  
Giant Dipole Resonance ◽  
Coulomb Excitation ◽  
Dipole Resonance ◽  
First Excited State ◽  
Virtual Excitation

The contribution to the Coulomb excitation of the first excited state of 170 due to virtual excitation of the giant dipole resonance (GDR) is calculated, using shell model wavefunctions for the ground and first excited states. A large value is obtained.

Gamma Decay of Excited States inBi210and an Interpretation with the Shell Model

1973 ◽  
Vol 7 (5) ◽  
pp. 2137-2150 ◽  
Author(s):  
D. Proetel ◽  
F. Riess ◽  
E. Grosse ◽  
R. Ley ◽  
M. R. Maier ◽  
...  
Keyword(s):  
Shell Model ◽  
Excited States ◽  
Gamma Decay ◽  
Decay Of Excited States

Characterization of Charge Transfer in Excited States of Extended Clusters of π-Stacked Donor and Acceptor Complexes in Lock-Arm Supramolecular Ordering

2019 ◽  
Vol 123 (21) ◽  
pp. 4532-4542 ◽  
Author(s):  
Rui-xue Chen ◽  
Adélia J. A. Aquino ◽  
Andrew C.-H. Sue ◽  
Thomas Niehaus ◽  
Hans Lischka
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Donor And Acceptor ◽  
Supramolecular Ordering

Absorption spectrum of the NO molecule. VIII. The heterogeneous (2Σ–2Π) interactions between excited states

1968 ◽  
Vol 46 (8) ◽  
pp. 987-1003 ◽  
Author(s):  
Ch. Jungen ◽  
E. Miescher
Keyword(s):  
Absorption Spectrum ◽  
High Resolution ◽  
Excited States ◽  
Rydberg State ◽  
Vacuum Ultraviolet ◽  
Principal Quantum Number ◽  
Rydberg States ◽  
Infrared Emission ◽  
Strong Interactions ◽  
Rydberg Series

Heterogeneous perturbations 2E+ ~ 2Π of largely different magnitudes are observed with high resolution in the vacuum-ultraviolet absorption and in the infrared emission spectrum of the NO molecule. The rotational interactions between 2Σ+ Rydberg states and levels of the B2Π non-Rydberg state are shown to be "configurationally forbidden", but produced by the configuration interaction between the non-Rydberg levels and 2Π Rydberg states. The latter together with the 2Σ+ Rydberg states form p complexes. In this way the interactions display the l uncoupling in the complexes; they can be evaluated theoretically and can be analyzed fully. The cases of the strong interactions D2Σ+(v = 3) ~ B2Π(v = 16)and D2Σ+(v = 5) ~ B2Π(v = 21) and of the weaker D2Σ+(v = 1) ~ B2Π(v = 11), all three observed as perturbations in ε bands crossing 3 bands, are discussed in detail. It is further shown that perturbations between γ bands and β bands as well as perturbations between analogous bands of higher principal quantum number are absent, and thus the assignment of the A2Σ+ and E2Σ+ states to the s Rydberg series is confirmed.

scholarly journals Photoluminescence properties of Yb2+ ions doped in the perovskites CsCaX3 and CsSrX3 (X = Cl, Br, and I) – a comparative study

2016 ◽  
Vol 18 (19) ◽  
pp. 13196-13208 ◽  
Author(s):  
Markus Suta ◽  
Werner Urland ◽  
Claude Daul ◽  
Claudia Wickleder
Keyword(s):  
Optical Properties ◽  
High Resolution ◽  
Comparative Study ◽  
Lanthanide Ions ◽  
Photoluminescence Spectra ◽  
Photoluminescence Properties ◽  
Detailed Understanding ◽  
Host Lattices ◽  
Divalent Lanthanide

Photoluminescence spectra of Yb2+ ions doped into CsCaX3 and CsSrX3 (X = Cl, Br, and I) depict a manifold of transitions in high resolution, which allows a detailed understanding of the optical properties of divalent lanthanide ions in perovskite host lattices.

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