Fluorescence quenching in micelles in the presence of a probe-quencher ground-state charge-transfer complex

1993 ◽  
Vol 97 (43) ◽  
pp. 11242-11248 ◽  
Author(s):  
Marcelo H. Gehlen ◽  
Frans C. De Schryver
Keyword(s):  
Charge Transfer ◽  
Fluorescence Quenching ◽  
Ground State ◽  
Charge Transfer Complex ◽  
State Charge

Ground-state charge-transfer complex formation in hybrid poly(3-hexyl thiophene):titanium dioxide solar cells

2008 ◽  
Vol 93 (22) ◽  
pp. 223302 ◽  
Author(s):  
I. Haeldermans ◽  
K. Vandewal ◽  
W. D. Oosterbaan ◽  
A. Gadisa ◽  
J. D’Haen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Charge Transfer ◽  
Complex Formation ◽  
Ground State ◽  
Charge Transfer Complex ◽  
State Charge

Ground-state charge transfer for NIR absorption with donor/acceptor molecules: interactions mediated via energetics and orbital symmetries

2017 ◽  
Vol 5 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Qian Zhang ◽  
Xianjie Liu ◽  
Fei Jiao ◽  
Slawomir Braun ◽  
Mohammad Javad Jafari ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ground State ◽  
Charge Transfer Complex ◽  
Structure Property ◽  
Conjugated Molecules ◽  
Nir Absorption ◽  
Structure Property Relationship ◽  
Donor Acceptor ◽  
Relationship Of ◽  
State Charge

This paper illustrates structure–property relationship of organic conjugated molecules in forming NIR-absorbing organic donor/acceptor charge-transfer complex at ground state.

Fluorescence Quenching of Aminodiphenylamines with Chloromethanes

2002 ◽  
Vol 67 (8) ◽  
pp. 1154-1164 ◽  
Author(s):  
Nachiappan Radha ◽  
Meenakshisundaram Swaminathan
Keyword(s):  
Charge Transfer ◽  
Fluorescence Quenching ◽  
Ground State ◽  
Rate Constants ◽  
Quenching Mechanism ◽  
Quenching Rate ◽  
Charge Transfer Interaction ◽  
Electronically Excited ◽  
A Charge

The fluorescence quenching of 2-aminodiphenylamine (2ADPA), 4-aminodiphenylamine (4ADPA) and 4,4'-diaminodiphenylamine (DADPA) with tetrachloromethane, chloroform and dichloromethane have been studied in hexane, dioxane, acetonitrile and methanol as solvents. The quenching rate constants for the process have also been obtained by measuring the lifetimes of the fluorophores. The quenching was found to be dynamic in all cases. For 2ADPA and 4ADPA, the quenching rate constants of CCl4 and CHCl3 depend on the viscosity, whereas in the case of CH2Cl2, kq depends on polarity. The quenching rate constants for DADPA with CCl4 are viscosity-dependent but the quenching with CHCl3 and CH2Cl2 depends on the polarity of the solvents. From the results, the quenching mechanism is explained by the formation of a non-emissive complex involving a charge-transfer interaction between the electronically excited fluorophores and ground-state chloromethanes.

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