Designing a better optoelectronic device

Article Abstract:

A better optoelectronic device using commercially available pyrromethene laser dyes dispersed in plastic polymers may be designed. Using a combination of experimental and mathematical approaches, a group at the University of North Carolina, Charlotte, is working to understand and control mechanisms that contribute to efficient long-lasting devices. Two competing processes, photocurrent production and fluorescence of the organic chromophore, are of interest. Effects of electric field strengths, residual solvent, laser fluence, sample concentration and aggregation are to be studied. Relative roles of photothermal and photochemical mechanisms will be investigated. The photodegradation rate is to be lowered.

Lasers, Electron donor-acceptor complexes

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Designing a better optoelectronic device

Article Abstract:

Designing a better optoelectronic device and research related to plastic optoelectonic materials, made from organic dyes in solid matrices, is discussed. Applications might be in CDs, solid-state dye lasers, solar cells, optical switches, organic light-emitting diodes (OLEDs), and waveguides. A combination of experimental and mathematical approaches is being used. It seems several mechanisms operate at the same time. In the future determining the absolute photocarrier yield and contributions from photothermal and photochemical mechanisms will be undertaken.

Plastics, Materials, Light-emitting diodes, LEDs, Photochemical research, Dyes and dyeing, Dyeing, Dyes

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Through the nanoengineered optoelectronic looking glass

Article Abstract:

Advanced materials and applications seen at the Materials Research Society spring 2000 meeting are discussed. They involve safeguarding buildings from natural disaster, acts of terrorism and normal aging, micropen technology for writing living cells onto a substrate to proliferate, using fungi to recycle wood products, guarding against counterfeiting of currency and other things, computer modeling programs based on integrating all aspects of a material, and splitting metallic lines in two for computer chips.

Statistical Data Included, Innovations, Nanotechnology, Chemistry, Advanced materials, Advanced materials industry

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