NDLI: Polymer light-emitting devices: promises, prospects-and problems

Content Provider	IEEE Xplore Digital Library
Author	Heeger, A.J.
Copyright Year	1995
Description	Author affiliation: Inst. for Polymers & Org. Solids, California Univ., Santa Barbara, CA, USA (Heeger, A.J.)
Abstract	Summary form only given. Light-emitting devices made from conducting polymers offer attractive advantages. These include the fabrication of uniform areas of light on flexible substrates, with a variety of colours, using thin films of semiconducting and luminescent polymers cast from solution. The status of the science and technology will be summarized with emphasis on recent progress using two different device configurations: tunneling injection light-emitting diodes (LEDs) and light-emitting electrochemical cells (LECs). The latter is a new device configuration for light emission film electroactive polymers. In these LECs, a p-n junction diode is created in-situ through simultaneous p-type and n-type electrochemical doping on opposite sides, respectively, of a film of conjugated polymer which contains added electrolyte to provide the necessary counterions for doping. LECs have been fabricated which operate by the proposed electrochemical oxidation-reduction mechanism; blue, green and orange emission are obtained with turn-on voltage close to the bandgap of the emissive material.
File Size	51376
File Format	PDF
ISBN	0780324501
DOI	10.1109/LEOS.1995.484740
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polymer films Light emitting diodes Doping Fabrication Substrates Semiconductor thin films Semiconductivity Tunneling Semiconductor films P-n junctions
Content Type	Text
Resource Type	Article

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