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Pure Appl. Chem. Vol. 73, No. 3, pp. 425-430 (2001)

Pure and Applied Chemistry

Vol. 73, Issue 3

Conjugated polymers. New materials for optoelectronic devices*

R. H. Friend

Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, UK

Abstract: Conjugated polymers now provide a class of processible, film-forming semiconductors and metals. We have worked on the development of the semiconductor physics of these materials by using them as the active components in a range of semiconductor devices. Polymer light-emitting diodes show particular promise, and recent developments in color range (red, green, and blue), efficiency (above 20 lumen/W for green emitters), and operating lifetime are discussed. Progress on their application to displays, with integration with active-matrix TFT drive, and with patterned deposition using inkjet printing techniques is also reviewed. The role played by interfaces between electrode and semiconducting polymer is also discussed.

*Lecture presented at the XVIIIth IUPAC Symposium on Photochemistry, Dresden, German , 22-27 July 2000.Other presentations are published in this issue, pp.395-548.


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