Transient photoconductivity and charge generation in thin films of π-conjugated polymers

2005 ◽  
Vol 112 (1-4) ◽  
pp. 363-367 ◽  
Author(s):  
Martin Weiter ◽  
Heinz Bässler
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Charge Generation ◽  
Transient Photoconductivity

Application of Thin Films of Conjugated Polymers in Novel LED's and Liquid Crystal 'Light Valves'

1997 ◽  
Author(s):  
A. G. MacDiarmid ◽  
H. L. Wang ◽  
F. Huang ◽  
J. K. Avlyanov ◽  
P. C. Wang
Keyword(s):  
Thin Films ◽  
Liquid Crystal ◽  
Conjugated Polymers

scholarly journals Fabrication of Low-Fouling Surfaces on Alkyne-Functionalized Poly-(p-xylylenes) Using Click Chemistry

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 225
Author(s):  
Pei-Ju Chen ◽  
Hsien-Yeh Chen ◽  
Wei-Bor Tsai
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Click Chemistry ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Universal Method ◽  
Surface Immobilization ◽  
Poly Ethylene Glycol ◽  
Wide Range ◽  
Poly Ethylene

A facial, versatile, and universal method that breaks the substrate limits is desirable for antifouling treatment. Thin films of functional poly-p-xylylenes (PPX) that are deposited using chemical vapor deposition (CVD) provide a powerful platform for surface immobilization of molecules. In this study, we prepared an alkyne-functionalized PPX coating on which poly (sulfobetaine methacrylate-co-Az) could be conjugated via click chemistry. We found that the conjugated polymers were very stable and inhibited cell adhesion and protein adsorption effectively. The same conjugation strategy could also be applied to conjugate azide-containing poly (ethylene glycol) and poly (NIPAAm). The results indicate that our method provides a simple and robust tool for fabricating antifouling surfaces on a wide range of substrates using CVD technology of functionalized poly (p-xylylenes) for biosensor, diagnostics, immunoassay, and other biomaterial applications.

Ultrafast photoinduced charge generation in conjugated polymers

2000 ◽  
Vol 316 (5-6) ◽  
pp. 356-360 ◽  
Author(s):  
Daniel Moses ◽  
Arthur Dogariu ◽  
Alan J Heeger
Keyword(s):  
Conjugated Polymers ◽  
Charge Generation ◽  
Photoinduced Charge

The Influence of Ordering on the Photoinduced Charge Transfer in Composites of Phenyl-type Substituted Polythiophenes with Methanofullerenes

1999 ◽  
Vol 598 ◽  
Author(s):  
Christoph J. Brabec ◽  
Christoph Winder ◽  
Markus C. Scharber ◽  
N. Serdar Sariciftci ◽  
Mats R. Andersson ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Transfer ◽  
Treatment Results ◽  
Generation Efficiency ◽  
Charge Generation ◽  
Photoinduced Charge Transfer ◽  
Strong Electron ◽  
Low Energies ◽  
Photoinduced Charge ◽  
Absorption Measurements

ABSTRACTRegioregular polythiophenes baring 3-(p-methoxyethoxyethoxy)-phenyl substituents (PEOPT) show high photoluminescence efficiencies. Exposing thin films of this polymer to vapors of chloroform or annealing them by heat treatment results in a red shift of the absorption maximum due to solvent or heat induced ordering which gives rise to more planar conformations. The fact, that annealed thin films of PEOPT exhibit absorption edges at relatively low energies and thus have an enhanced spectral range makes them suitable for use in photodiodes / solar cells. The photoinduced charge generation efficiency in PEOPT is significantly enhanced by the addition of a strong electron acceptor like fullerene, as observed by quenching of the luminescence and by photoinduced absorption measurements in the infrared and UV-Vis regime. The efficiency of the photoinduced charge transfer from PEOPT to a methanofullerene is found to depend on the ordering of PEOPT in thin films.

scholarly journals Overcoming Coulomb Interaction Improves Free-Charge Generation and Thermoelectric Properties for n-Doped Conjugated Polymers

2019 ◽  
Vol 4 (7) ◽  
pp. 1556-1564 ◽  
Author(s):  
Jian Liu ◽  
Yongqiang Shi ◽  
Jingjin Dong ◽  
Mohamad I. Nugraha ◽  
Xinkai Qiu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Coulomb Interaction ◽  
Thermoelectric Properties ◽  
Free Charge ◽  
Charge Generation

Thin Films of Conjugated Polymers for Photoelectrochemical and Electronic Devices

1988 ◽  
Vol 92 (11) ◽  
pp. 1261-1266 ◽  
Author(s):  
Francis Garnier ◽  
Gilles Horowitz ◽  
Jean Roncali ◽  
Marc Lemaire
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Electronic Devices

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.

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