scholarly journals Air-stable n-channel organic field-effect transistors based on charge-transfer complexes including dimethoxybenzothienobenzothiophene and tetracyanoquinodimethane derivatives

2016 ◽  
Vol 4 (25) ◽  
pp. 5981-5987 ◽  
Author(s):  
Toshiki Higashino ◽  
Masaki Dogishi ◽  
Tomofumi Kadoya ◽  
Ryonosuke Sato ◽  
Tadashi Kawamoto ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Single Crystals ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Charge Transfer Complexes ◽  
Organic Field Effect Transistors

Novel mixed stack charge-transfer complexes (DMeO-BTBT)(Fn-TCNQ) show air-stable n-channel transistor performance in the thin films and single crystals.

Charge-Transfer Complexes of Benzothienobenzothiophene with Tetracyanoquinodimethane and the n-Channel Organic Field-Effect Transistors

2017 ◽  
Vol 121 (12) ◽  
pp. 6561-6568 ◽  
Author(s):  
Ryonosuke Sato ◽  
Masaki Dogishi ◽  
Toshiki Higashino ◽  
Tomofumi Kadoya ◽  
Tadashi Kawamoto ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Charge Transfer Complexes ◽  
Organic Field Effect Transistors

Thin insulating polymer films as dielectric layers for phthalocyanine-based organic field effect transistors

2006 ◽  
Vol 10 (10) ◽  
pp. 1179-1189 ◽  
Author(s):  
Christian Kelting ◽  
Wilfried Michaelis ◽  
Andreas Hirth ◽  
Dieter Wöhrle ◽  
Derck Schlettwein
Keyword(s):  
Thin Films ◽  
Polymer Films ◽  
Field Effect ◽  
Field Effect Transistors ◽  
High Vacuum ◽  
Dielectric Behavior ◽  
Organic Field Effect Transistors ◽  
Electrical Measurements ◽  
Dielectric Layers ◽  
Vis Spectroscopy

Films of organic polymers were prepared and investigated as insulating layers in contact with phthalocyanines as organic semiconductors for use in organic field effect transistors. The polymer films were obtained either by a high-vacuum technique based on the thermal decomposition of polymers and polymerization of the fragments on a substrate, by the spin-coating of polymer solutions or by the cross-linking of spin-coated precursors. Poly(vinylchloride), poly(vinylidenefluoride), poly(acrylonitrile), poly(methylmethacrylate), poly( N -vinylpyrrolidone), poly(styrene), poly(4-vinylpyridine), poly( N -vinylcarbazole) and a polyimide were used as polymers. The film growth was studied by mass spectrometry and infrared spectroscopy. Electrochemical measurements by cyclic voltammetry served to analyze the properties of the polymer films. The morphology was determined by atomic force microscopy. Interactions of the films with phthalocyaninatozinc ( PcZn ) was analyzed for co-evaporated PcZn in the polymer films, to probe the chemical compatibility of the methods. Subsequently, evaporated PcZn or hexadecafluorophthalocyaninato-oxo-vanadium ( F 16 PcVO ) thin films were studied in detail by UV-vis spectroscopy and by electrical measurements to investigate interface formation, intermolecular coupling and electrical conduction in such films. The applicability of the different polymers as dielectric layers in organic field effect transistors, with phthalocyanines as the active semiconductor thin films, is discussed, based on their dielectric behavior and observed growth characteristics.

Cellulose nanocrystals thin films as gate dielectric for flexible organic field-effect transistors

2014 ◽  
Vol 126 ◽  
pp. 55-58 ◽  
Author(s):  
L. Valentini ◽  
S. Bittolo Bon ◽  
M. Cardinali ◽  
E. Fortunati ◽  
J.M. Kenny
Keyword(s):  
Thin Films ◽  
Cellulose Nanocrystals ◽  
Field Effect ◽  
Gate Dielectric ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors

Surface-induced highly oriented perylo[1,12-b,c,d]selenophene thin films for high performance organic field-effect transistors

2016 ◽  
Vol 35 ◽  
pp. 186-192 ◽  
Author(s):  
Lili Liu ◽  
Zhongjie Ren ◽  
Chengyi Xiao ◽  
Huanli Dong ◽  
Shouke Yan ◽  
...  
Keyword(s):  
Thin Films ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors

scholarly journals Spray-coated contacts from an organic charge transfer complex solution for organic field-effect transistors

2017 ◽  
Vol 48 ◽  
pp. 365-370 ◽  
Author(s):  
S. Georgakopoulos ◽  
A. Pérez-Rodríguez ◽  
A. Campos ◽  
I. Temiño ◽  
S. Galindo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Field Effect ◽  
Charge Transfer Complex ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Complex Solution

scholarly journals Donor-Acceptor Interaction in Films of Tetracene–Tetracyanoquinodimethane Heterostructures and Composites

2018 ◽  
Vol 63 (1) ◽  
pp. 70
Author(s):  
M. P. Gorishnyi ◽  
A. B. Verbitsky
Keyword(s):  
Thin Films ◽  
Absorption Spectra ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Composite Films ◽  
Charge Transfer Complexes ◽  
Acceptor Interaction ◽  
Light Emitting ◽  
Donor Acceptor ◽  
First Time

The structures and the absorption and photovoltaic spectra of thin films of tetracene (TC) and tetracyanoquinodimethane (TCNQ), as well as the films of their heterostructures (TC/TCNQ) and composites (TC + TCNQ), have been studied. The heterostructures and composites are obtained by the thermal sputtering of the components – successively or simultaneously, respectively – in vacuum. The photovoltaic spectra were measured, by using the condenser method. It is found for the first time that the largest changes ΔD1 in the TC/TCNQ and TC + TCNQ absorption spectra with respect to the sum of the absorption spectra of the components are observed in the intervals of TCNQ dimeric bands at 2.214 eV (ΔD1 < 0) and in all TC bands (ΔD1 > 0). Those changes testify to the formation of charge transfer complexes between the TC (the electron donor) and TCNQ (the electron acceptor) molecules at the interfaces in the TC/TCNQ heterostructures and in the bulk of TC + TCNQ composites, which is also confirmed by the appearance of TC+- and TCNQ−-bands in the photovoltaic spectra of both the heterostructure and composite films. This result is important for a deeper understanding of the operating mechanisms in various potentially imaginable devices based on those heterostructures and composites (solar cells, field-effect transistors, and light-emitting diodes).

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