Emissive polymers and devices incorporating these polymers

Details Emissive polymers and devices incorporating these polymers Emissive polymers and devices incorporating these polymers

2011-05-17

2011-05-17

Griffin, Walter D (Department: 1797)

Compositions

Organic luminescent material containing compositions

Synthetic resin containing

C252S582000, C252S301160, C422S068100, C422S050000, C422S082050, C257S040000

Reexamination Certificate

active

07943062

ABSTRACT:
The present invention relates to a class of luminescent and conductive polymer compositions having chromophores, and particularly solid films of these compositions exhibiting increased luminescent lifetimes, quantum yields and amplified emissions. These desirable properties can be provided through polymers having rigid groups designed to prevent polymer reorganization, aggregation or π-stacking upon solidification. These polymers can also display an unusually high stability with respect to solvent and heat exposures. The invention also relates to a sensor and a method for sensing an analyte through the luminescent and conductive properties of these polymers. Analytes can be sensed by activation of a chromophore at a polymer surface. Analytes include aromatics, phosphate ester groups and in particular explosives and chemical warfare agents in a gaseous state. The present invention also relates to devices and methods for amplifying emissions by incorporating a polymer having an energy migration pathway and/or providing the polymer as a block co-polymer or as a multi-layer.

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