Influence of Dielectric Layers on Charge Transport through Diketopyrrolopyrrole-Containing Polymer Films: Dielectric Polarizability vs Capacitance

2016 ◽  
Vol 8 (44) ◽  
pp. 30344-30350 ◽  
Author(s):  
Jiyoul Lee ◽  
Jong Won Chung ◽  
Gyu Bok Yoon ◽  
Moo Hyung Lee ◽  
Do Hwan Kim ◽  
...  
Keyword(s):  
Charge Transport ◽  
Polymer Films ◽  
Dielectric Layers ◽  
Dielectric Polarizability

scholarly journals Charge transport in polymer films.

Kobunshi ◽  
1986 ◽  
Vol 35 (3) ◽  
pp. 252-255
Author(s):  
Yotaro Morishima
Keyword(s):  
Charge Transport ◽  
Polymer Films

scholarly journals Solvent-dependent self-assembly and ordering in slow-drying drop-cast conjugated polymer films

2015 ◽  
Vol 3 (38) ◽  
pp. 9842-9848 ◽  
Author(s):  
Kui Zhao ◽  
Xinhong Yu ◽  
Ruipeng Li ◽  
Aram Amassian ◽  
Yanchun Han
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Charge Transport ◽  
Polymer Films ◽  
Self Assembly ◽  
Conjugated Polymer ◽  
Optoelectronic Properties ◽  
Microstructure Development ◽  
Mechanistic Understanding ◽  
Semiconducting Thin Films

The mechanistic understanding of the intrinsic molecular self-assembly of conjugated polymers is of immense importance to control the microstructure development in organic semiconducting thin films, with a meaningful impact on charge transport and optoelectronic properties.

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.

Band bending in conjugated polymer films: role of morphology and implications for bulk charge transport characteristics

2017 ◽  
Vol 5 (30) ◽  
pp. 7446-7451 ◽  
Author(s):  
J. K. Wenderott ◽  
Ban Xuan Dong ◽  
Peter F. Green
Keyword(s):  
Charge Transport ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Kelvin Probe Force Microscopy ◽  
Kelvin Probe ◽  
Band Bending ◽  
Force Microscopy ◽  
Bending Effect ◽  
Bulk Charge

The band bending effect depends on the morphology of the conjugated polymer as studied by Kelvin probe force microscopy.

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