Femtosecond Pump-Probe Analysis of Energy and Electron Transfer in Photosynthetic Membranes of Rhodobacter capsulatus

Biochemistry ◽  
1994 ◽  
Vol 33 (27) ◽  
pp. 8313-8322 ◽  
Author(s):  
Weizhong Xiao ◽  
Su Lin ◽  
Aileen K. W. Taguchi ◽  
Neal W. Woodbury
Keyword(s):  
Electron Transfer ◽  
Rhodobacter Capsulatus ◽  
Pump Probe ◽  
Photosynthetic Membranes ◽  
Probe Analysis ◽  
Energy And Electron Transfer

Ultrafast Energy And Electron Transfer In Conjugated Oligomer-Fullerene Molecules

2001 ◽  
Vol 665 ◽  
Author(s):  
P.A. van Hal ◽  
R.A.J. Janssen ◽  
G. Lanzani ◽  
G. Cerullo ◽  
M. Zavelani-Rossi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Time Constant ◽  
Transfer Reaction ◽  
Polar Solvent ◽  
Phenylene Vinylene ◽  
Intramolecular Electron Transfer ◽  
Pump Probe ◽  
Energy And Electron Transfer ◽  
Probe Spectroscopy

ABSTRACTThe intramolecular photoinduced energy and electron transfer within a fullereneoligothiophene-fullerene triad with nine thiophene units (C60-9T-C60) and an oligo(p-phenylene vinylene)-fullerene dyad with four phenyl groups (OPV4-C60) is investigated with femtosecond pump-probe spectroscopy with sub-10 fs and 200 fs time resolution in solvents of different polarity. Photoexcitation of the π-conjugated oligomer moiety in the triad and dyad results in an ultrafast singlet-energy transfer reaction to create the fullerene singlet-excited state with a time constant of 150-190 fs, irrespective of the polarity of the medium. In a polar solvent, intramolecular electron transfer occurs from the oligomer moiety to the C60 moiety with a time constant of 10-13 ps as a secondary reaction, subsequent to the ultrafast singlet-energy transfer. The charge-separated state has a lifetime of 50-80 ps and recombines to the ground state.

scholarly journals Solvent-dependent photo-induced dynamics in a non-rigidly linked zinc phthalocyanine–perylenediimide dyad probed using ultrafast spectroscopy

2017 ◽  
Vol 19 (31) ◽  
pp. 21078-21089 ◽  
Author(s):  
Bryan Kudisch ◽  
Margherita Maiuri ◽  
Vicente M. Blas-Ferrando ◽  
Javier Ortiz ◽  
Ángela Sastre-Santos ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Dynamic System ◽  
Ultrafast Spectroscopy ◽  
Light Harvesting ◽  
Zinc Phthalocyanine ◽  
Artificial Light ◽  
Pump Probe ◽  
Energy And Electron Transfer

A solvent dependent pump–probe study on an artificial light harvesting dyad reveals static and dynamic system-bath interactions observed in ultrafast photoinduced energy and electron transfer.

Electron and energy transfer in a porphyrin–oxoporphyrinogen–fullerene triad, ZnP–OxP–C60

2020 ◽  
Vol 22 (25) ◽  
pp. 14356-14363 ◽  
Author(s):  
Mandeep K. Chahal ◽  
Habtom B. Gobeze ◽  
Whitney A. Webre ◽  
Paul A. Karr ◽  
Daniel T. Payne ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Pump Probe ◽  
Zinc Porphyrin ◽  
Energy And Electron Transfer ◽  
Probe Spectroscopy

Competitive energy and electron transfer in a newly synthesized supramolecular triad composed of zinc porphyrin, oxoporphyrinogen and C60 has been demonstrated using ultrafast pump–probe spectroscopy.

Sequential Energy and Electron Transfer in Aggregates of Tetrakis[oligo(p-phenylene vinylene)] Porphyrins and C60in Water

2005 ◽  
Vol 127 (39) ◽  
pp. 13484-13485 ◽  
Author(s):  
Martin Wolffs ◽  
Freek J. M. Hoeben ◽  
Edwin H. A. Beckers ◽  
Albertus P. H. J. Schenning ◽  
E. W. Meijer
Keyword(s):  
Electron Transfer ◽  
Phenylene Vinylene ◽  
Energy And Electron Transfer

Novel Free-Carrier Pump-Probe Analysis of Carrier Transport in Semiconductors

2013 ◽  
Vol 3 (1) ◽  
pp. 348-352 ◽  
Author(s):  
R. K. Ahrenkiel ◽  
A. Feldman ◽  
J. Lehman ◽  
S. W. Johnston
Keyword(s):  
Carrier Transport ◽  
Free Carrier ◽  
Pump Probe ◽  
Probe Analysis
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