Photoinduced Charge Transfer Between Tetracyano-Anthraquino-Dimethane Derivatives and Conjugated Polymers

1999 ◽  
Vol 598 ◽  
Author(s):  
G. Zerza ◽  
M. Scharber ◽  
J. L. Segura ◽  
R. Gomez ◽  
N. Martin ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Power Law ◽  
Modulation Frequency ◽  
Excited State Absorption ◽  
Photoinduced Absorption ◽  
Strong Electron ◽  
Near Ir ◽  
Alkyl Side Chains ◽  
Donor Acceptor ◽  
Two Peaks

ABSTRACTThe photo-induced charge transfer between tetracyano-anthraquino-dimethane (TCAQ) derivatives and poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylene vinylene) MDMO-PPV was studied by means of photoinduced absorption (PIA) spectroscopy in the VIS and IR spectral region and lightinduced electron spin resonance (LESR) spectroscopy. Three different TCAQ derivatives with alkyl-side chains for increased solubility compared to TCAQ and one of them attached to a C60 molecule serve as strong electron acceptors. The photoinduced absorption in the VIS near-IR range shows a broad plateau around 1.8 eV followed by two peaks at 1.35 and 1.24eV for all three acceptors. All PIA features have a power law excitation intensity dependence with an exponent close to 0.5 as expected for bimolecular kinetics. The modulation frequency dependent excited state absorption decreases with a power law. LESR studies of all donor-acceptor combinations show one radical line at a g = 2.0028 with.H = 3.5 Gauss, originating from TCAQ anion and the polymer cation.

Electron spin resonance study of donor-acceptor sites in Zr-montmorillonite

Clay Minerals ◽  
1992 ◽  
Vol 27 (3) ◽  
pp. 343-351 ◽  
Author(s):  
J. V. Zanchetta ◽  
A. Matrod-Bashi ◽  
F. Figueras
Keyword(s):  
Charge Transfer ◽  
Internal Surface ◽  
Electron Spin Resonance Study ◽  
Charge Transfer Process ◽  
Strong Electron ◽  
Two Samples ◽  
Spin Resonance ◽  
Donor Acceptor ◽  
Different Grain Size ◽  
Spin Resonance Study

AbstractThe charge transfer process that occurs in two samples of Wyoming montmorillonite of different grain size pillared with Zr by interaction with perylene (Pe) and tetracyanoethylene (TCNE) has been studied. These smectites are strongly affected by the exchange of Zr and appear to be strong electron acceptors and weak donors. The ESR results show that their ability to form charge transfer radicals is related to the details of preparation, which most probably control the accessibility of Pe and TCNE to the internal surface.

scholarly journals Near-IR absorbing donor–acceptor ligand-to-ligand charge-transfer complexes of nickel(ii)

2016 ◽  
Vol 7 (3) ◽  
pp. 1807-1814 ◽  
Author(s):  
Lindsay A. Cameron ◽  
Joseph W. Ziller ◽  
Alan F. Heyduk
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Donor Ligands ◽  
Charge Transfer Complexes ◽  
Near Ir ◽  
Ligand Charge Transfer ◽  
Donor Acceptor ◽  
Ir Light

Ligand-to-ligand charge-transfer complexes of nickel(ii) incorporating azanidophenolate donor ligands absorb near-IR light to access highly reducing excited states.

Ultrafast Charge Transfer and Relaxation at a Donor–Acceptor Interface

2021 ◽  
Author(s):  
Fernando Rodríguez Díaz ◽  
Hong-Guang Duan ◽  
R. J. Dwayne Miller ◽  
Michael Thorwart
Keyword(s):  
Charge Transfer ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer

Theoretical study on the charge transfer mechanism at donor/acceptor interface: Why TTF/TCNQ is inadaptable to photovoltaics?

2016 ◽  
Vol 145 (24) ◽  
pp. 244705 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yun Geng ◽  
Yu-Ai Duan ◽  
Guang-Yan Sun ◽  
Min Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism ◽  
Donor Acceptor
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