scholarly journals Low energy excited state vibrations revealed in conjugated copolymer PCDTBT

2020 ◽  
Vol 152 (4) ◽  
pp. 044201
Author(s):  
Shawn Irgen-Gioro ◽  
Palas Roy ◽  
Suyog Padgaonkar ◽  
Elad Harel
Keyword(s):  
Excited State ◽  
Low Energy ◽  
Conjugated Copolymer

Photoinduced ligand dissociation follows reverse energy gap law: nitrile photodissociation from low energy 3MLCT excited states

2020 ◽  
Vol 56 (29) ◽  
pp. 4070-4073
Author(s):  
Lauren M. Loftus ◽  
Jeffrey J. Rack ◽  
Claudia Turro
Keyword(s):  
Excited State ◽  
Excited States ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Energy Gap ◽  
Low Energy ◽  
Transient Absorption Spectroscopy ◽  
Ligand Dissociation ◽  
Energy Gap Law

Transient absorption spectroscopy is used to show that stabilization of the 3MLCT excited state in a series of Ru(ii) complexes leads to decreased population of the 3LF state, but does not reduce the efficiency of photoinduced nitrile dissociation.

Spontaneous Tunnel Transitions Induced by Redistribution of Trapped Electrons over Impurity Centers

1983 ◽  
Vol 38 (9) ◽  
pp. 959-962
Author(s):  
A. A. Berezin
Keyword(s):  
Excited State ◽  
Charge State ◽  
Ground State ◽  
Low Energy ◽  
Energy Photon ◽  
Impurity Site ◽  
The Third ◽  
Tunnel Transition ◽  
Extra Electron ◽  
Impurity Centers

Abstract A system of polyvalent impurity centers in a semiconductor (i.e. Au-centers in Si) is con-sidered. The ground state of the impurity pair Au-(a) + Au° (b), where an extra electron is localized on the site a, may be turned into an excited state due to a change of the charge state of a third nearby impurity site. This happens because of different shifts of the Au--level at sites a and b due to their different distances from the third center. As a result, the original pair is able to reach a new ground state Au° (a) + Au- (b) through a slow spontaneous tunnel transition. The probability of this transition, when it is accompanied by an emission of a low energy photon, is calculated explicitly.

Excited state formation in low energy Li+–surface collisions

1993 ◽  
Vol 11 (4) ◽  
pp. 2133-2137 ◽  
Author(s):  
D. R. Andersson ◽  
E. R. Behringer ◽  
B. H. Cooper ◽  
J. B. Marston
Keyword(s):  
Excited State ◽  
State Formation ◽  
Low Energy
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