scholarly journals All-optical manipulation of singlet exciton transport in individual supramolecular nanostructures by triplet gating

2021 ◽  
Author(s):  
Bernd Wittmann ◽  
Till Biskup ◽  
Klaus Kreger ◽  
Jürgen Köhler ◽  
Hans-Werner Schmidt ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Organic Molecules ◽  
Light Harvesting ◽  
Optical Manipulation ◽  
Natural Light ◽  
Singlet Exciton ◽  
Directed Transport ◽  
Exciton Transport ◽  
All Optical ◽  
Harvesting Systems

Directed transport of singlet excitation energy is a key process in natural light-harvesting systems and a desired feature in assemblies of functional organic molecules for organic electronics and nanotechnology applications....

Excitation-Energy Migration in Self-Assembled Cyclic Zinc(II)-Porphyrin Arrays: A Close Mimicry of a Natural Light-Harvesting System

2005 ◽  
Vol 11 (12) ◽  
pp. 3753-3761 ◽  
Author(s):  
In-Wook Hwang ◽  
Mira Park ◽  
Tae Kyu Ahn ◽  
Zin Seok Yoon ◽  
Dah Mee Ko ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Light Harvesting ◽  
Energy Migration ◽  
Natural Light ◽  
Self Assembled

Separating Annihilation and Excitation Energy Transfer Dynamics in Light Harvesting Systems

2013 ◽  
Vol 117 (38) ◽  
pp. 11372-11382 ◽  
Author(s):  
Mikas Vengris ◽  
Delmar S. Larsen ◽  
Leonas Valkunas ◽  
Gerdenis Kodis ◽  
Christian Herrero ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Light Harvesting ◽  
Excitation Energy Transfer ◽  
Harvesting Systems

scholarly journals Polariton-assisted excitation energy channeling in organic heterojunctions

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mao Wang ◽  
Manuel Hertzog ◽  
Karl Börjesson
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Strong Coupling Regime ◽  
Strong Light ◽  
Time Resolved ◽  
Exciton Transport ◽  
Donor And Acceptor ◽  
Harvesting Systems ◽  
Order Of Magnitude ◽  
Electron Donor And Acceptor

AbstractExciton-polaritons are hybrid light-matter states resulting from strong exciton-photon coupling. The wave function of the polariton is a mixture of light and matter, enabling long-range energy transfer between spatially separated chromophores. Moreover, their delocalized nature, inherited from the photon component, has been predicted to enhance exciton transport. Here, we strongly couple an organic heterojunction consisting of energy/electron donor and acceptor materials to the same cavity mode. Using time-resolved spectroscopy and optoelectrical characterization, we show that the rate of exciton harvesting is enhanced with one order of magnitude and the rate of energy transfer in the system is increased two- to threefold in the strong coupling regime. Our results exemplify two means of efficiently channeling excitation energy to a heterojunction interface, where charge separation can occur. This study opens a new door to increase the overall efficiency of light harvesting systems using the tool of strong light-matter interactions.

scholarly journals Polariton-Assisted Excitation Energy Channeling in Organic Heterojunctions

2020 ◽  
Author(s):  
Mao Wang ◽  
Manuel Hertzog ◽  
Karl Börjesson
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Strong Coupling Regime ◽  
Strong Light ◽  
Time Resolved ◽  
Exciton Transport ◽  
Donor And Acceptor ◽  
Harvesting Systems ◽  
Order Of Magnitude ◽  
Electron Donor And Acceptor

Exciton-polaritons are hybrid light-matter states resulting from strong exciton-photon coupling. The wave function of the polariton is a mixture of light and matter, enabling long-range energy transfer between spatially separated chromophores. Moreover, their delocalized nature, inherited from the photon component, has been predicted to enhance exciton transport. Here, we strongly couple an organic heterojunction consisting of energy/electron donor and acceptor materials to the same cavity mode. Using time-resolved spectroscopy and optoelectrical characterization, we show that the rate of exciton harvesting is enhanced with one order of magnitude and the rate of energy transfer in the system is increased two- to threefold in the strong coupling regime. Our results exemplify two means of efficiently channeling excitation energy to a heterojunction interface, where charge separation can occur. This study opens a new door to increase the overall efficiency of light harvesting systems using the tool of strong light-matter interactions.

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