Academic Journal
Characterization of Polyaniline Based Polymer Light-Emitting Devices During Operation by Electrical Impedance Spectroscopy
| العنوان: | Characterization of Polyaniline Based Polymer Light-Emitting Devices During Operation by Electrical Impedance Spectroscopy |
|---|---|
| المؤلفون: | Posdorfer, J., Wessling, B. |
| المساهمون: | ORMECON GMBH AMMERSBEK (GERMANY) |
| المصدر: | DTIC |
| سنة النشر: | 2004 |
| المجموعة: | Defense Technical Information Center: DTIC Technical Reports database |
| مصطلحات موضوعية: | Polymer Chemistry, Electrooptical and Optoelectronic Devices, Atomic and Molecular Physics and Spectroscopy, SPECTROSCOPY, POLYMERS, ELECTRICAL IMPEDANCE, POLYANILINES, LIGHT EMITTING DIODES, INJECTION, EQUIVALENT CIRCUITS, SPIN COATINGS, GERMANY, SULFONATES, POLYSTYRENE, SYMPOSIA, PLED(POLYMER LIGHT EMITTING DIODES), LEP(LIGHT EMITTING POLYMERS), PANI/PSS(POLYANILINE/POLYSTYRENE-SULFONATE), EIS(ELECTRICAL IMPEDANCE SPECTROSCOPY), HOLE INJECTION LAYERS, COMPONENT REPORTS, FOREIGN REPORTS |
| الوصف: | Polyaniline was used as hole injection material for polymer light emitting devices (PLED) spin coated from a water based polyaniline/polystyrenesulfonate (Pani/PSS) dispersion. Data presented here were based on red, yellow, green and blue light emitting polymers (LEP). Depending on the applied bias voltages, the devices were studied by electrical impedance spectroscopy (EIS) in a wide frequency range. Experimental data could only be fitted by applying an equivalent circuit consisting of three RC elements in series. By separating the frequency dependent bulk and interface contributions, the bulk and junction resistance and capacitance were determined for various current densities. Variation in high interfacial capacitance was observed in the devices before and after stressing the PLEDs with a constant current of 10 mA/cm2 for 100 h. ; See also ADM001811. Presented at the International Conference on Science and Technology of Synthetic Metals (ICSM 2004), held in New South Wales, Australia on 28 Jun-2 Jul 2004. Pub. in the Proceedings of the International Conference for the Science and Technology of Synthetic Metals (ICSM 2004), 2004. |
| نوع الوثيقة: | text |
| وصف الملف: | text/html |
| اللغة: | English |
| Relation: | http://www.dtic.mil/docs/citations/ADA441718 |
| الاتاحة: | http://www.dtic.mil/docs/citations/ADA441718 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA441718 |
| Rights: | Approved for public release; distribution is unlimited. |
| رقم الانضمام: | edsbas.2C8F9F16 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |