Polymer Electroluminescent Materials

Electroluminescent devices based on cross-linked polymer blends

We report the electrical and optical properties of two-component blends of electron and hole transporting materials in single and bilayer structures for organic light emitting diode ~OLED! applications. The materials considered were a blue-emitting bipolar transporting polyfluorene, poly~9,9-di-n-hexylfluorene! ~DHF!, and a hole-transporting material, poly-@4-nhexyltriphenylamine# ~HTPA!. We co...

Electroluminescent Characteristics of DBPPV–ZnO Nanocomposite Polymer Light Emitting Devices

We have demonstrated that fabrication and characterization of nanocomposite polymer light emitting devices with metal Zinc Oxide (ZnO) nanoparticles and 2,3-dibutoxy-1,4-poly(phenylenevinylene) (DBPPV). The current and luminance characteristics of devices with ZnO nanoparticles are much better than those of device with pure DBPPV. Optimized maximum luminance efficiencies of DBPPV-ZnO (3:1 wt%) ...

Electroluminescent Devices Using a Polymer of Regulated Conjugation Length and a Polymer Blend

Chemical Recycling of Polymer Materials

After the first life cycle of plastics various recycling processes are available for further utilization of these valuable materials. For an ecologically and economically satisfying solution the most suitable process has to be chosen. In chemical recycling polymers are degraded to basic chemical substances which can be reused in the petrochemical industry. For soiled waste plastics or waste pla...

Electroluminescent polymers

Electroluminescent polymers are reviewed in terms of synthesis and relationships between structure and light emission properties. The main concepts, problems and ideas related to the subject as a whole and to each class of electroluminescence (EL) polymer, have been systematically addressed. The elements of device architecture were considered, such as electrode characteristics and transport lay...