Polymer light emitting diode

Polymer Light Emitting Diodes , the most promising name in the field of display tech- nology has received tremendous attention from various research groups. Being an interdiscipli- nary area of research, there has been challenging experiments on material science, device physics and chemistry of this organic . Polymer light-emitting diodes have become feasible when suitable materials were available. The various relevant properties are interrelated parameters.

The solubility can be improved in various ways but here the introduction of side- chains has been found most successful.

Colour tuning is achieved by attaching electron .

Single layer polymer light emitting diodes (LEDs) are ideal candidates for practical applications due to their easy processing conditions.

However, low quantum efficiency of light generation is often obtained due to imbalanced charge injection and transport of holes and electrons. In this paper we report new conjugated . The use of ink-jetted conducting nanoparticles as the cathode yields high-resolution cathode patterns . POLYMER LIGHT EMITTING DIODE Biswajit Acharya M. Tech,AEIE,1st Year Heritage Institute of Technology. The combination of semiconductivity and intense PL in LEP electroluminescence and their use in polymer light emitting diodes (PLEDs). The high sensitivity of PL quenching to doping or charge transfer can be used to detect biological and explosive species.

Therefore, the LEPs represent an important category of . This chapter introduces concepts and progress in the field of polymeric light - emitting diodes (PLEDs) and polymer lasers. It describes the details of PLEDs fabricated from conjugated polymers , and outlines the descriptions of the accurate measurement of PLED device parameters. Functional polymers are increasingly being used in the electronics industry.

The advantages are ease of processing, tailor-made materials and unique properties. The technology used is spin-coating of PPV derivatives which are made soluble by side chains attached to the polymer. The polymer light-emitting diode build-up . For single-layer LEDS, we find that the operational lifetime in nitrogen gas is limited by the stability of the indium-tin-oxide (ITO) anode. The fast degradation of polymer light-emitting diodes (PLEDs) in ambient conditions is primarily due to the oxidation of highly reactive metals, such as barium or calcium, which are used as cathode materials. Here, we report the fabrication of PLEDs using an air-stable partially oxidized aluminum (AlOx) cathode.

We describe, in detail, the operating mechanisms of PLEDs, with . Organic light-emitting diodes have been recently focused for flexible display and solid-state lighting applications and so much effort has been devoted to achieve highly efficient organic light-emitting diodes. Here, we improve the efficiency of inverted polymer light-emitting diodes by introducing a . The transmittance and light-scattering characteristics of the ITO nanorods were better than those of ITO film. The brightness and current efficiency of the PLED with the ITO nanorod layer were . This Thesis is brought to you for free and open access by Lehigh Preserve.

Fabrication and encapsulation of polymer light emitting diodes. It has been accepted for inclusion in Theses and Dissertations by an authorized .