Intramolecular Radiative and Radiationless Charge Recombination Processes in Donor−Acceptor Carbazole Derivatives

1997 ◽  
Vol 101 (12) ◽  
pp. 2332-2344 ◽  
Author(s):  
Andrzej Kapturkiewicz ◽  
Jerzy Herbich ◽  
Jerzy Karpiuk ◽  
Jacek Nowacki
Keyword(s):  
Charge Recombination ◽  
Carbazole Derivatives ◽  
Recombination Processes ◽  
Donor Acceptor

Quantifying Charge Recombination in Solar Cells Based on Donor–Acceptor P3HT Analogues

2014 ◽  
Vol 118 (13) ◽  
pp. 6650-6660 ◽  
Author(s):  
Saptaparna Das ◽  
Petr P. Khlyabich ◽  
Beate Burkhart ◽  
Sean T. Roberts ◽  
Elsa Couderc ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Recombination ◽  
Donor Acceptor

Light harvesting vesicular donor–acceptor scaffold limits the rate of charge recombination in the presence of an electron donor

2014 ◽  
Vol 7 (5) ◽  
pp. 1661-1669 ◽  
Author(s):  
Rijo T. Cheriya ◽  
Ajith R. Mallia ◽  
Mahesh Hariharan
Keyword(s):  
Charge Transfer ◽  
Survival Time ◽  
Electron Donor ◽  
Self Assembly ◽  
Light Harvesting ◽  
Charge Recombination ◽  
Donor Acceptor

This work highlights the utility of π–π stacked self-assembly for enhanced survival time of charge transfer intermediates upon photoexcitation of donor–acceptor systems.

scholarly journals Photoconversion Mechanism at the pn-Homojunction Interface in Single Organic Semiconductor

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1727 ◽  
Author(s):  
Ji-Hyun Lee ◽  
Armand Perrot ◽  
Masahiro Hiramoto ◽  
Seiichiro Izawa
Keyword(s):  
Organic Semiconductors ◽  
Organic Semiconductor ◽  
Energy Structure ◽  
Free Charge ◽  
Charge Generation ◽  
Recombination Processes ◽  
Single Host ◽  
Donor Acceptor ◽  
Doping Technique ◽  
Determining Factor

Clarifying critical differences in free charge generation and recombination processes between inorganic and organic semiconductors is important for developing efficient organic photoconversion devices such as solar cells (SCs) and photodetector. In this study, we analyzed the dependence of doping concentration on the photoconversion process at the organic pn-homojunction interface in a single organic semiconductor using the temperature dependence of J–V characteristics and energy structure measurements. Even though the organic pn-homojunction SC devices were fabricated using a single host material and the doping technique resembling an inorganic pn-homojunction, the charge generation and recombination mechanisms are similar to that of conventional donor/acceptor (D/A) type organic SCs; that is, the charge separation happens from localized exciton and charge transfer (CT) state being separated by the energy offset between adjacent molecules, and the recombination happens from localized charge carrier at two adjacent molecules. The determining factor for photoconversion processes is the localized nature of charges in organic semiconductors. The results demonstrated that controlling the delocalization of the charges is important to realize efficient organic photoconversion devices.

scholarly journals Afterglow Effects as a Tool to Screen Emissive Nongeminate Charge Recombination Processes in Organic Photovoltaic Composites

2019 ◽  
Vol 12 (2) ◽  
pp. 2695-2707 ◽  
Author(s):  
Panagiotis E. Keivanidis ◽  
Grigorios Itskos ◽  
Zhipeng Kan ◽  
Eduardo Aluicio-Sarduy ◽  
Hossein Goudarzi ◽  
...  
Keyword(s):  
Charge Recombination ◽  
Organic Photovoltaic ◽  
Recombination Processes

Fine tuning of electron transfer and spin chemistry parameters in triarylamine–bridge–naphthalene diimide dyads by bridge substituents

2018 ◽  
Vol 20 (42) ◽  
pp. 27093-27104 ◽  
Author(s):  
Julian Schäfer ◽  
Marco Holzapfel ◽  
Alexander Schmiedel ◽  
Ulrich E. Steiner ◽  
Christoph Lambert
Keyword(s):  
Magnetic Field ◽  
Electron Transfer ◽  
Charge Recombination ◽  
Fine Tuning ◽  
Spin Chemistry ◽  
Naphthalene Diimide ◽  
Field Dependent ◽  
Donor Acceptor

A series of donor–acceptor dyads with diverse meta-conjugated benzene bridges show a pronounced magnetic field dependent charge recombination.

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