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An alkylsilylphenoxy PPV chromophore
Synthetic Metals, 2002Abstract The synthesis and characterization of a poly( p -phenylene vinylene) (PPV) based chromophore containing a long chain alkylsilylphenoxy side group have been reported. Physical and electroluminescent (EL) properties of the green light emitting polymer, poly[2-4′-dimethyldodecylsilylphenyloxy-1,4-phenylene vinylene] (SiPhOPPV), in single and ...
Sung-Ho Jin +6 more
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Optical and electrical properties of PPV/SiO2 and PPV/TiO2 composite materials
Composites Part A: Applied Science and Manufacturing, 2005Abstract Composites made by incorporation of SiO2 or TiO2 nanoparticles into poly(p-phenylene vinylene) (PPV) have been fabricated and their optical and electrical properties have been investigated. The UV–vis absorption band of the composite films showed a large blue-shift with SiO2 nanoparticles, but only little difference with TiO2 nanoparticles ...
S.H. Yang +3 more
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Comparison of the electronic structure of PPV and its derivative DIOXA-PPV
Chemical Physics, 2006Electronic structure of two conjugated polymers, PPV and its derivative DIOXA-PPV, are studied by quantum-chemistry methods. Good agreement between the calculations and available experimental data validates the applied methods and enables us to draw conclusions about properties of excitons and polarons in these polymers. In particular, simultaneous use
Mengtao Sun +3 more
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Preparation and study of PPV/PVA nanofibers via electrospinning PPV precursor alcohol solution
European Polymer Journal, 2007Abstract We have found a simple method to prepare poly(phenylene vinylene) (PPV) nanofibers via electrospinning PPV precursor alcohol solution under annealed at 180 °C in a N2 atmosphere. The nanofibers are uniform in diameter and long in decimeter magnitudes with resistance in decay, which makes them have potential applications in optical and ...
Wen Zhang +6 more
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Luminescent properties of coumarin-doped MEH-PPV and novel coumarin-terminated MEH-PPV
Materials Chemistry and Physics, 2005Abstract A series of novel coumarin-terminated poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene (CT-MEH-PPV) were synthesized successfully via Gilch methodology. Luminescent properties of CT-MEH-PPV were compared with those of blend systems.
Yan Huang +9 more
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MetaVInsulatorPolymer - LEDs Based on PPV
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 1996Abstract We investigated the current-voltage (I-V) and electroluminescence (EL) characteristic of metal/polymer and metal/insulator/polymer (MIP) LEDs based on poly (1,4-phenylene vinylene) (PPV). The I-V- and EL characteristics of the MIP structures display a pronounced dependence of the insulator thickness and we measure an increase of the quantum ...
Martin Meier +6 more
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Substituted PPV's for blue light
Synthetic Metals, 1999Abstract Conjugated polymers based on poly(l,4-phenylenevinylene) (PPV) have provided one of the foundations for polymer based LED's. One of the important routes to these materials is to polymerise a substituted 1,4-bis(halomethylene)benzene to form a soluble halo precursor polymer which is then thermally treated to give the final conjugated polymer.
R.M. Taylor, P.L. Burn, D.D.C. Bradley
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Physica B: Condensed Matter, 2001
In this work, electrically detected magnetic resonance (EDMR) at X-band is used to study the electronic properties of poly(2-metoxy-5-(2 0 -etil-hexiloxy)-1,4-phenylene vinylene) (MEH-PPV) light-emitting diodes (LEDs). The EDMR signal from MEH-PPV LEDs is found to be composed of two lines, a Lorentzian with peak-to-peak linewidth of 5 G, and a Gaussian
G.B. Silva +3 more
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In this work, electrically detected magnetic resonance (EDMR) at X-band is used to study the electronic properties of poly(2-metoxy-5-(2 0 -etil-hexiloxy)-1,4-phenylene vinylene) (MEH-PPV) light-emitting diodes (LEDs). The EDMR signal from MEH-PPV LEDs is found to be composed of two lines, a Lorentzian with peak-to-peak linewidth of 5 G, and a Gaussian
G.B. Silva +3 more
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Lasing characteristics of PPV microcavities
Synthetic Metals, 1997Abstract We report lasing characteristics of poly (p-phenylenevinylene) (PPV) microcavity devices.
N. Tessler, G.J. Denton, R.H. Friend
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Synthetic Metals, 2000
pn-Junctions of MEH-PPV on top of heavily doped n-type silicon were used in electrical measurements. Through deep-level transient-spectroscopy (DLTS)-like measurements, four traps (two majority and two minority traps) could be identified on top of the shallow acceptor level responsible for conduction. Furthermore, evidence is found for interface states.
Stallinga, Peter +5 more
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pn-Junctions of MEH-PPV on top of heavily doped n-type silicon were used in electrical measurements. Through deep-level transient-spectroscopy (DLTS)-like measurements, four traps (two majority and two minority traps) could be identified on top of the shallow acceptor level responsible for conduction. Furthermore, evidence is found for interface states.
Stallinga, Peter +5 more
openaire +2 more sources