Carotenoid Charge Transfer States and Their Role in Energy Transfer Processes in LH1–RC Complexes from Aerobic Anoxygenic Phototrophs

2012 ◽  
Vol 117 (38) ◽  
pp. 10987-10999 ◽  
Author(s):  
Václav Šlouf ◽  
Marcel Fuciman ◽  
Alexander Dulebo ◽  
David Kaftan ◽  
Michal Koblížek ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Anoxygenic Phototrophs ◽  
Transfer Processes ◽  
Aerobic Anoxygenic Phototrophs

scholarly journals Horizontal versus vertical charge and energy transfer in hybrid assemblies of semiconductor nanoparticles

2012 ◽  
Vol 3 ◽  
pp. 629-636 ◽  
Author(s):  
Gilad Gotesman ◽  
Rahamim Guliamov ◽  
Ron Naaman
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Horizontal Plane ◽  
Quartz Substrate ◽  
Vertical Direction ◽  
Time Resolved ◽  
Transfer Processes ◽  
Donor And Acceptor ◽  
Hybrid Assemblies ◽  
Time Resolved Photoluminescence

We studied the photoluminescence and time-resolved photoluminescence from self-assembled bilayers of donor and acceptor nanoparticles (NPs) adsorbed on a quartz substrate through organic linkers. Charge and energy transfer processes within the assemblies were investigated as a function of the length of the dithiolated linker (DT) between the donors and acceptors. We found an unusual linker-length-dependency in the emission of the donors. This dependency may be explained by charge and energy transfer processes in the vertical direction (from the donors to the acceptors) that depend strongly on charge transfer processes occurring in the horizontal plane (within the monolayer of the acceptor), namely, parallel to the substrate.

Charge-Transfer and Energy-Transfer Processes in π-Conjugated Oligomers and Polymers:  A Molecular Picture

2004 ◽  
Vol 104 (11) ◽  
pp. 4971-5004 ◽  
Author(s):  
Jean-Luc Brédas ◽  
David Beljonne ◽  
Veaceslav Coropceanu ◽  
Jérôme Cornil
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Conjugated Oligomers ◽  
Transfer Processes ◽  
Molecular Picture

Specific absorption in Y3Al5O12:Eu ceramics and the role of stable Eu2+ in energy transfer processes

2020 ◽  
Vol 8 (26) ◽  
pp. 8823-8839
Author(s):  
Maksym Buryi ◽  
Lubomír Havlák ◽  
Vítězslav Jarý ◽  
Jan Bárta ◽  
Valentyn Laguta ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Charge Transfer Transition ◽  
Vacuum Sintering ◽  
Absorption Bands ◽  
Specific Absorption ◽  
Transfer Processes ◽  
Ceramic Samples ◽  
The Eu

Several sets of Eu-doped Y3Al5O12 (YAG) ceramic samples were synthesized by the vacuum sintering technique. Absorption bands at 250, 370 and 550 nm in samples were attributed to the charge transfer transition in the EuY2+ + F+ pair center.

Charge-Transfer and Energy-Transfer Processes in ?-Conjugated Oligomers and Polymers: A Molecular Picture

ChemInform ◽  
2005 ◽  
Vol 36 (5) ◽  
Author(s):  
Jean-Luc Bredas ◽  
David Beljonne ◽  
Veaceslav Coropceanu ◽  
Jerome Cornil
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Conjugated Oligomers ◽  
Transfer Processes ◽  
Molecular Picture

scholarly journals Beyond Charge Transfer: The Impact of Auger Recombination and FRET on PL Quenching in an rGO-QDs System

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1623
Author(s):  
Anton A. Babaev ◽  
Anastasiia V. Sokolova ◽  
Sergei A. Cherevkov ◽  
Kevin Berwick ◽  
Alexander V. Baranov ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Auger Recombination ◽  
Substantial Reduction ◽  
Component Ratio ◽  
Transfer Processes ◽  
Graphene Derivatives ◽  
The Impact ◽  
Pl Quenching

PL intensity quenching and the PL lifetime reduction of fluorophores located close to graphene derivatives are generally explained by charge and energy transfer processes. Analyzing the PL from PbS QDs in rGO/QD systems, we observed a substantial reduction in average PL lifetimes with an increase in rGO content that cannot be interpreted solely by these two processes. To explain the PL lifetime dependence on the rGO/QD component ratio, we propose a model based on the Auger recombination of excitations involving excess holes left in the QDs after the charge transfer process. To validate the model, we conducted additional experiments involving the external engineering of free charge carriers, which confirmed the role of excess holes as the main QD PL quenching source. A mathematical simulation of the model demonstrated that the energy transfer between neighboring QDs must also be considered to explain the experimental data carefully. Together, Auger recombination and energy transfer simulation offers us an excellent fit for the average PL lifetime dependence on the component ratio of the rGO/QD system.

Energy transfer processes of working gas in pulse tube

2000 ◽  
Author(s):  
Vincenzo Naso ◽  
Marco Lucentini ◽  
Wei Dong
Keyword(s):  
Energy Transfer ◽  
Pulse Tube ◽  
Transfer Processes
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