Film thickness dependency of the emission colors of PPE–PPVs in inkjet printed libraries

Tekin, Emine; Wijlaars, Harald; Holder, Elisabeth; Egbe, Daniel Ayuk Mbi; Schubert, Ulrich S.

doi:10.1039/b610996a

Cited by 74 publications

(56 citation statements)

References 18 publications

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“…This process often entails multiple experiments and repeated measurements of the electroluminescent properties of different devices, which is at once time-consuming and material intensive. Tekin et al [49] used inkjet printing to examine the influence on the emission properties of six different poly-(phenylene-ethynylene)/PPV (PPE-PPV)-based p-conjugated polymers with different side chains and film thicknesses in a parallel manner. They found a strong dependence of the emission wavelength on inter-chain interactions, which in turn depend on both the chemistry and the device thicknesses.…”

Section: Light-emitting Devicesmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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In this Progress Report we provide an update on recent developments in inkjet printing technology and its applications, which include organic thin-film transistors, light-emitting diodes, solar cells, conductive structures, memory devices, sensors, and biological/pharmaceutical tasks. Various classes of materials and device types are in turn examined and an opinion is offered about the nature of the progress that has been achieved.

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Section: Light-emitting Devicesmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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“…[ 24,25 ] By printing thin-fi lm libraries, the infl uence of ink composition, substrate properties, and different printing parameters on the fi lm properties can be studied in a fast, reproducible, and easy way with a maximum materials effi ciency. [ 26,27 ] Critical parameters for the performance of bulk heterojunction solar cells are the donor/acceptor ratio, the fi lm thickness, as well as the morphology of the resulting fi lms. The optimal ratio between donor and acceptor material can be determined by fl uorescence quenching and morphological investigations.…”

Section: Introductionmentioning

confidence: 99%

Combinatorial Screening of Polymer:Fullerene Blends for Organic Solar Cells by Inkjet Printing

Teichler

Eckardt

Hoeppener

et al. 2010

Advanced Energy Materials

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102

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Polymer:fullerene blends were screened in a combinatorial approach using inkjet printing thin film libraries for photovoltaic devices. The application of inkjet printing enabled a fast and simple experimental workflow from film preparation to the study of structure‐property‐relationships with a very high material efficiency. Inkjet printing requires less material for the preparation of thin film libraries in comparison to other dispensing techniques, like spin‐coating. Two polymers (PCPDTBT, PSBTBT) and two fullerene derivatives (mono‐PCBM, bis‐PCBM) were investigated in various blend ratios, concentrations, solvent ratios, and film thicknesses. Morphological and optical properties of the inkjet printed films were investigated and compared with spin‐coated films. This study shows the principle of an experimental setup from solution preparation to film characterization for the combinatorial investigation of large polymer:fullerene libraries.

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“…by spin-coating and inkjet printing [5,6]. Poly(p-phenyleneethynylene)-alt-poly(p-phenylenevinylene)s (PPE-PPVs) with different alkoxy side chains are attractive materials due to their tunable band gap properties and thus variable emission color (green to red) [7][8][9][10]. Alkoxy chains, grafted as side groups on the backbone of conjugated polymers, do not only enhance the solubility and subsequently the processability into thin films for various applications, but can also lead to remarkable changes in optical, electronic and transport properties of conjugated polymers in the solid state.…”

Section: Electroluminescence Property Of Organic Lightmentioning

confidence: 99%

Electroluminescence property of organic light emitting diode (OLED)

Özdemi̇r¹,

Tekin²,

Pravadalı³

et al. 2013

AIP Conference Proceedings

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Transport properties of electrons and holes were investigated not only in a anthracenecontaining poly(p-phenylene-ethynylene)-alt -poly(p-phenylene-vinylene) (PPE-PPV) polymer (AnE-PVstat) light emitting diodes (OLED) but also in an ITO/Ag/polymer/Ag electron and ITO/PEDOT:PSS/polymer/Au hole only devices. Mobility of injected carriers followed the Poole-Frenkel type conduction mechanism and distinguished in the frequency range due to the difference of transit times in admittance measurement. Beginning of light output took place at the turn-on voltage (or flat band voltage), 1.8 V, which was the difference of energy band gap of polymer and two barrier offsets between metals and polymer.

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Film thickness dependency of the emission colors of PPE–PPVs in inkjet printed libraries

Cited by 74 publications

References 18 publications

Inkjet Printing—Process and Its Applications

Inkjet Printing—Process and Its Applications

Combinatorial Screening of Polymer:Fullerene Blends for Organic Solar Cells by Inkjet Printing

Electroluminescence property of organic light emitting diode (OLED)

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