scholarly journals Halide-Dependent Change of the Lowest-Excited-State Character from MLCT to XLCT for the Complexes Re(X)(CO)3(α-diimine) (X = Cl, Br, I; α-diimine = bpy, iPr-PyCa, iPr-DAB) Studied by Resonance Raman, Time-Resolved Absorption, and Emission Spectroscopy

1996 ◽  
Vol 35 (10) ◽  
pp. 2902-2909 ◽  
Author(s):  
Brenda D. Rossenaar ◽  
Derk J. Stufkens ◽  
Antonín Vlček
Keyword(s):  
Excited State ◽  
Emission Spectroscopy ◽  
Resonance Raman ◽  
Time Resolved ◽  
Absorption And Emission ◽  
Dependent Change ◽  
Absorption And Emission Spectroscopy

Ground- and excited-state absorption and emission spectroscopy of Nd:GGG

2012 ◽  
Vol 132 (10) ◽  
pp. 2521-2524 ◽  
Author(s):  
R. Soulard ◽  
B. Xu ◽  
J.L. Doualan ◽  
P. Camy ◽  
R. Moncorgé
Keyword(s):  
Excited State ◽  
Emission Spectroscopy ◽  
Excited State Absorption ◽  
Absorption And Emission ◽  
Absorption And Emission Spectroscopy

Excited state dynamics of organic semi-conducting materials

2015 ◽  
Vol 177 ◽  
pp. 111-119 ◽  
Author(s):  
Kenneth P. Ghiggino ◽  
Andrew J. Tilley ◽  
Benjamin Robotham ◽  
Jonathan M. White
Keyword(s):  
Excited State ◽  
Conjugated Polymer ◽  
Variable Temperature ◽  
Emission Spectra ◽  
Time Resolved ◽  
Absorption And Emission ◽  
X Ray ◽  
X Ray Crystallography ◽  
Conducting Materials ◽  
Absorption And Emission Spectroscopy

Time-resolved absorption and emission spectroscopy has been applied to investigate the dynamics of excited state processes in oligomer models for semi-conducting organic materials. Following the photo-excitation of a pentamer oligomer that is a model for the conjugated polymer MEH-PPV, an ultrafast component of a few picoseconds is observed for the decay of the initially formed transient species. Variable temperature absorption and emission spectra combined with X-ray crystallography and calculations support the assignment of this rapid relaxation process to an excited state conformational rearrangement from non-planar to more planar molecular configurations. The implications of the results for the overall photophysics of conjugated polymers are considered.

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