Tracking Structural Dynamics during Charge Separation Processes with Time-Resolved Impulsive Stimulated Raman Spectroscopy

2020 ◽  
Author(s):  
Dongho Kim
Keyword(s):  
Raman Spectroscopy ◽  
Structural Dynamics ◽  
Charge Separation ◽  
Separation Processes ◽  
Time Resolved ◽  
Stimulated Raman

Tracking Structural Evolution during Symmetry‐Breaking Charge Separation in Quadrupolar Perylene Bisimide with Time‐Resolved Impulsive Stimulated Raman Spectroscopy

2020 ◽  
Vol 132 (22) ◽  
pp. 8649-8656
Author(s):  
Woojae Kim ◽  
Taeyeon Kim ◽  
Seongsoo Kang ◽  
Yongseok Hong ◽  
Frank Würthner ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Symmetry Breaking ◽  
Charge Separation ◽  
Structural Evolution ◽  
Time Resolved ◽  
Perylene Bisimide ◽  
Stimulated Raman

scholarly journals Femtosecond Time-Resolved Stimulated Raman Spectroscopy of the S2(1Bu+) Excited State of β-Carotene

2004 ◽  
Vol 108 (28) ◽  
pp. 5921-5925 ◽  
Author(s):  
Philipp Kukura ◽  
David W. McCamant ◽  
Richard A. Mathies
Keyword(s):  
Raman Spectroscopy ◽  
Excited State ◽  
Time Resolved ◽  
Β Carotene ◽  
Stimulated Raman

A Simple Dyad Exhibiting Microsecond Charge-Separation in Non-Polar Solvents

2006 ◽  
Vol 59 (3) ◽  
pp. 179 ◽  
Author(s):  
Kenneth P. Ghiggino ◽  
James A. Hutchison ◽  
Steven J. Langford ◽  
Melissa J. Latter ◽  
Marcia A.-P. Lee ◽  
...  
Keyword(s):  
Electron Spin ◽  
Charge Separation ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Time Resolved Fluorescence ◽  
Polar Solvents ◽  
Separation Processes ◽  
Time Resolved ◽  
A Charge

A simple photovoltaic device in which two chromophoric components are assembled by Zn–N coordination yields a charge-separated state with microsecond lifetime upon photoexcitation in non-polar solvents. Characterization of the electron transfer dynamics using time-resolved fluorescence and transient absorption spectroscopy suggests that the unusual longevity is due to charge recombination occurring between states with different electron spin character. Control of electron spin may provide a novel paradigm for optimizing light-induced charge-separation processes.

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