Temperature dependence of dielectric properties and anisotropy of charge-transfer complex derivatives of s-trinitrobenzene in microwave bands

1972 ◽  
Vol 17 (4) ◽  
pp. 635-642 ◽  
Author(s):  
K. Leibler ◽  
A. Graczyk ◽  
M. Jaworski ◽  
J. Zagrodziński
Keyword(s):  
Charge Transfer ◽  
Dielectric Properties ◽  
Temperature Dependence ◽  
Charge Transfer Complex ◽  
Derivatives Of

scholarly journals Temperature Dependence ofĝ Tensor Anisotropy in (tm-p-PD):Chloranil Charge Transfer Complex Powders

2005 ◽  
Vol 108 (2) ◽  
pp. 317-321 ◽  
Author(s):  
G. Grampp ◽  
P.B. Sczaniecki ◽  
S. Żurek ◽  
W. Bednarski
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Charge Transfer Complex

PHOTOCONDUCTION AND SEMICONDUCTION IN MONOCRYSTALS OF THE CHARGE-TRANSFER COMPLEX, PERYLENE–FLUORANIL

1964 ◽  
Vol 42 (5) ◽  
pp. 1084-1087 ◽  
Author(s):  
H. KOKADO ◽  
K. Hasegawaj ◽  
W. G. Schneider
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Near Infrared ◽  
Charge Transfer Complex ◽  
Crystallographic Axis ◽  
Carrier Generation ◽  
Near Ultraviolet ◽  
Infrared Spectral ◽  
Apparent Activation Energies

Single crystals of the perylene–fluoranil charge-transfer complex were found to be photoconductive throughout the near ultraviolet, visible, and near infrared spectral regions. The temperature dependence of the semiconduction and photoconduction are characterized by apparent activation energies of 0.73 ev and 0.12 ev, respectively. Conductivity parallel to the c-crystallographic axis (along which the complex units are stacked in columns) was found to be about threefold greater than that in the perpendicular direction. Attempts to measure carrier mobilities proved unsuccessful. The results suggest extrinsic carrier generation accompanied by pronounced carrier trapping processes.

Dielectric Properties of the Charge-transfer Complex of Phenothiazine and Trinitrobenzene

2013 ◽  
Vol 42 (9) ◽  
pp. 989-991
Author(s):  
Hayao Kobayashi ◽  
Biao Zhou ◽  
Yuji Imai ◽  
Daisuke Yokota ◽  
Akiko Kobayashi
Keyword(s):  
Charge Transfer ◽  
Dielectric Properties ◽  
Charge Transfer Complex

Influence of Iodine on Low Frequency Dielectric Properties of Anthrone

1995 ◽  
Vol 60 (11) ◽  
pp. 1809-1814
Author(s):  
Grzegorz W. Bak ◽  
Marian Kryszewski
Keyword(s):  
Charge Transfer ◽  
Dielectric Properties ◽  
Dielectric Response ◽  
Charge Transfer Complex ◽  
Low Frequency ◽  
Frequency Dispersion ◽  
Low Loss ◽  
Remarkable Change ◽  
Ct Complex

Low frequency dielectric properties of polycrystalline anthrone and anthrone/iodine charge-transfer complex are presented. Polycrystalline anthrone proves to be a typical low-loss material. Iodization of anthrone pellets leads to a remarkable change in dielectric properties. Dielectric response of anthrone/iodine CT complex shows comparatively strong low frequency dispersion. The change in dielectric properties proves to be reversible to great extend as removing of iodine by heating at 373 K for a few hours almost completely restores the dielectric values of a virgin anthrone sample.

Temperature dependence of conductivity of charge-transfer complex C16H33 - TCNG - C17H35-DMTTF LB films

1991 ◽  
Vol 42 (1-2) ◽  
pp. 1471-1474 ◽  
Author(s):  
L.A Galchenkov ◽  
S.N Ivanov ◽  
F.Ya Nad' ◽  
V.P Chernov ◽  
T.S Berzina ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Temperature Dependence ◽  
Charge Transfer Complex ◽  
Lb Films ◽  
Temperature Dependence Of Conductivity

scholarly journals Conductivity and Magnetic Properties of the Charge-Transfer Complex from N,N'-Dicyanonaphthoquinonedimimine (DCNNI)and Tetrathiafulvalene (TTF)

1989 ◽  
Vol 44 (9) ◽  
pp. 825-832 ◽  
Author(s):  
H.-P. Werner ◽  
W. Grauf ◽  
J. U. von Schütz ◽  
H. C. Wolf ◽  
H. W. Helberg ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Charge Transfer ◽  
Physical Properties ◽  
Temperature Dependence ◽  
Charge Transfer Complex ◽  
Organic Conductors ◽  
Proton Relaxation ◽  
Relaxation Rates ◽  
Temperature Range ◽  
Donor And Acceptor

Abstract Conductivity (dc and ac), ESR-properties and proton relaxation rates of the charge transfer complex Tetrathiafulvalene N,N′-dicyanonaphthoquinonediimine in the temperature range be­ tween 300 K and 3.8 K are reported. This salt belongs to the unusual group of organic conductors, in which segregated donor and acceptor stacks are associated in a pairwise manner. The physical properties, which are compared with TTF-TCNQ, give evidence of non-stoichiometric charge transfer (ρ ≠ 1). A metal like state can be identified for T> 70 K, as is seen from the weak temper­ ature dependence of the conductivity (σrt ≈ 30 Scm-1) and the susceptibility (Xrt ≈ 7.5 ⋅ 10-4 emu/ mole) and from the Korringa like temperature dependence of the proton relaxation rates. The drop of the susceptibility at Tc ≈ 70 K and the activated temperature dependence of the conductivity for T < 70 K are explained by a metal-to-semiconductor transition.

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