Modeling the Emission Spectra of Organic Molecules: A Competition between Franck–Condon and Nuclear Ensemble Methods

2016 ◽  
Vol 120 (27) ◽  
pp. 5380-5388 ◽  
Author(s):  
Leonardo Evaristo de Sousa ◽  
Luiz Antonio Ribeiro ◽  
Antonio Luciano de Almeida Fonseca ◽  
Demétrio Antonio da Silva Filho
Keyword(s):  
Organic Molecules ◽  
Emission Spectra ◽  
Ensemble Methods ◽  
Franck Condon

scholarly journals Franck–Condon simulation of the single vibronic level emission spectra of HSiF and DSiF including anharmonicity

2004 ◽  
Vol 120 (3) ◽  
pp. 1292-1305 ◽  
Author(s):  
Daniel K. W. Mok ◽  
Edmond P. F. Lee ◽  
Foo-tim Chau ◽  
John M. Dyke
Keyword(s):  
Emission Spectra ◽  
Franck Condon ◽  
Vibronic Level

Influence of reaction parameters on the photoluminescence properties of free standing functionalized silicon nanocrystals

2010 ◽  
Vol 1260 ◽  
Author(s):  
Anoop Gupta ◽  
Hartmut Wiggers
Keyword(s):  
Optical Properties ◽  
Surface Functionalization ◽  
Silicon Nanocrystals ◽  
Organic Molecules ◽  
Surface Passivation ◽  
Light Emission ◽  
Emission Spectra ◽  
Surface Oxidation ◽  
Free Standing ◽  
The Stability

AbstractWhile silicon nanostructures acquire novel optical properties due to miniaturization, the stability of light emission is severely limited because of exciton trapping due to surface oxidation coming along with the formation of defects. Grafting of organic molecules on a hydrogen-terminated silicon surface via hydrosilylation provides a promising route to stabilize their surface against oxidation. In this communication, we report on the effect of surface passivation on the optical properties of freestanding silicon nanocrystals (Si-NCs). The surface functionalization of hydrogen-terminated Si-NCs with organic molecules was achieved via liquid phase hydrosilylation. We demonstrate that surface functionalization does not preserve the original emission of hydrogen-terminated Si-NCs. It is observed that the emission spectrum of green emitting hydrogen-terminated Si-NCs is red shifted after surface functionalization. We find that the direction of shift does not depend on the type of organic ligands and the reaction conditions, however, the amount of shift can be altered. The factors influencing the shift in the emission spectra of functionalized Si-NCs with respect to hydrogen-terminated samples are discussed.

A New Radio-Frequency Electrodeless Discharge Cell for Studying the Emission Spectra of Organic Molecules

1974 ◽  
Vol 28 (2) ◽  
pp. 175-183 ◽  
Author(s):  
Dennis J. Runser ◽  
C. W. Frank
Keyword(s):  
Radio Frequency ◽  
Organic Molecules ◽  
Emission Spectra ◽  
Gas Temperature ◽  
Chlorinated Pesticides ◽  
Electrodeless Discharge ◽  
New Radio ◽  
Medium Resolution ◽  
Wavelength Standard ◽  
Discharge Cell

A radio-frequency electrodeless discharge cell for studying the emission spectra of organic molecules is described. This medium pressure source is stable and reproducible with and without sampling it is also self-initiating. Pressure, power, and flow rate studies as well as “gas temperature” measurements were made. Low and medium resolution spectra of aromatic and nonaromatic chlorinated hydrocarbons and chlorinated pesticides are discussed. A qualitative internal wavelength standard is also described.

scholarly journals Spontaneous emission spectra of organic molecules in synthetic opal photonic crystals

2008 ◽  
Vol 9 (3) ◽  
pp. 164 ◽  
Author(s):  
O Guziy ◽  
B AbuSal ◽  
V Moiseyenko ◽  
M Dergachov ◽  
V Shvachich
Keyword(s):  
Photonic Crystals ◽  
Spontaneous Emission ◽  
Organic Molecules ◽  
Emission Spectra ◽  
Synthetic Opal

Simulation of Emission Spectra of the PF2(2B2→ X2B1) Transition byab InitioCalculation and Franck−Condon Analysis

1996 ◽  
Vol 100 (51) ◽  
pp. 19795-19800 ◽  
Author(s):  
Edmond P. F. Lee ◽  
De-Chao Wang ◽  
Foo-Tim Chau
Keyword(s):  
Emission Spectra ◽  
Franck Condon

Probing dynamics in the Franck–Condon and exit channel regions of dissociating H2S: Emission spectra upon tunable excitation from 199–203 nm

1994 ◽  
Vol 101 (7) ◽  
pp. 5652-5664 ◽  
Author(s):  
P. W. Browning ◽  
E. Jensen ◽  
G. C. G. Waschewsky ◽  
M. R. Tate ◽  
L. J. Butler ◽  
...  
Keyword(s):  
Emission Spectra ◽  
Exit Channel ◽  
H2s Emission ◽  
Franck Condon
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