Polaron stability under collision with different defects in conjugated polymers

Matheus Paes Lima; Geraldo Magela e Silva

doi:10.1002/qua.21012

Polaron stability under collision with different defects in conjugated polymers

International Journal of Quantum Chemistry ◽

10.1002/qua.21012 ◽

2006 ◽

Vol 106 (13) ◽

pp. 2603-2608 ◽

Cited By ~ 4

Author(s):

Matheus Paes Lima ◽

Geraldo Magela e Silva

Keyword(s):

Conjugated Polymers ◽

Polaron Stability

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Polaron stability in semiconducting polymer neat films

Chemical Communications ◽

10.1039/c4cc06193d ◽

2014 ◽

Vol 50 (92) ◽

pp. 14425-14428 ◽

Cited By ~ 7

Author(s):

Daniel Beatrup ◽

Jessica Wade ◽

Laure Biniek ◽

Hugo Bronstein ◽

Michael Hurhangee ◽

...

Keyword(s):

Oxidative Stress ◽

Conjugated Polymers ◽

Electrochemical Stability ◽

Stability Studies ◽

Semiconducting Polymer ◽

Alternating Copolymers ◽

Polaron Stability ◽

Neat Films

We describe a spectroelectrochemical approach to accelerated electrochemical stability studies of conjugated polymers under oxidative stress. The polaron stabilities of alternating copolymers based on (i) thiophene and thiazole, namely PTTz, and (ii) bithiophene and thiazole, namely PTTTz, are compared in neat films with that of P3HT. P3HT is found to be the most stable whilst PTTz is found to be the least stable.

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Temperature dependence of polaron stability in conjugated polymers

EPL (Europhysics Letters) ◽

10.1209/0295-5075/111/17009 ◽

2015 ◽

Vol 111 (1) ◽

pp. 17009 ◽

Cited By ~ 4

Author(s):

Y. L. Zhang ◽

X. J. Liu ◽

Z. An

Keyword(s):

Conjugated Polymers ◽

Temperature Dependence ◽

Polaron Stability

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Electronic structure studies of conducting polymers by electron energy-loss spectroscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100163265 ◽

1996 ◽

Vol 54 ◽

pp. 160-161

Author(s):

J. Fink

Keyword(s):

Electronic Structure ◽

Conducting Polymers ◽

Conjugated Polymers ◽

Electron Acceptors ◽

Electron Donors ◽

Light Emitting ◽

One Dimensional ◽

New Class ◽

Electrical Conductivities ◽

Electron Energy Loss

Conducting polymers comprises a new class of materials achieving electrical conductivities which rival those of the best metals. The parent compounds (conjugated polymers) are quasi-one-dimensional semiconductors. These polymers can be doped by electron acceptors or electron donors. The prototype of these materials is polyacetylene (PA). There are various other conjugated polymers such as polyparaphenylene, polyphenylenevinylene, polypoyrrole or polythiophene. The doped systems, i.e. the conducting polymers, have intersting potential technological applications such as replacement of conventional metals in electronic shielding and antistatic equipment, rechargable batteries, and flexible light emitting diodes.Although these systems have been investigated almost 20 years, the electronic structure of the doped metallic systems is not clear and even the reason for the gap in undoped semiconducting systems is under discussion.

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On the Influence of Low Magnetic Fields on the Photocurrent of Conjugated Polymers*

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.1992.1.part_2.189 ◽

1992 ◽

Vol 1 (Part_2) ◽

pp. 189-199

Author(s):

K. Lüders ◽

S. Blumstengel

Keyword(s):

Magnetic Fields ◽

Conjugated Polymers

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Oriented Luminescent Nanostructures From Single Molecules Of Conjugated Polymers

MRS Proceedings ◽

10.1557/proc-771-l9.8 ◽

2003 ◽

Vol 771 ◽

Author(s):

Adosh Mehta ◽

Pradeep Kumar ◽

Jie Zheng ◽

Robert M. Dickson ◽

Bobby Sumpter ◽

...

Keyword(s):

Conjugated Polymers ◽

Polarization Anisotropy ◽

Emission Pattern ◽

Spectral Signatures ◽

Dipole Emission ◽

Ink Jet ◽

Molecular Scale ◽

Jet Printing ◽

Photochemical Stability ◽

Printing Techniques

AbstractDipole emission pattern imaging experiments on single chains of common conjugated polymers (solubilized poly phenylene vinylenes) isolated by ink-jet printing techniques have revealed surprising uniformity in transition moment orientation perpendicular to the support substrate. In addition to uniform orientation, these species show a number of striking differences in photochemical stability, polarization anisotropy,[1] and spectral signatures[2] with respect to similar (well-studied) molecules dispersed in dilute thin-films. Combined with molecular mechanics simulation, these results point to a structural picture of a folded macromolecule as a highly ordered cylindrical nanostructure whose long-axis (approximately collinear with the conjugation axis) is oriented, by an electrostatic interaction, perpendicular to the coverglass substrate. These results suggest a number of important applications in nanoscale photonics and molecular-scale optoelectronics.

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