Article ID Journal Published Year Pages File Type
9776450 Synthetic Metals 2005 4 Pages PDF
Abstract
Polymer light-emitting diodes, which possess a multi-layer structure and produce blue, green and red emissions on an ITO substrate, were successfully fabricated. The basic device structure is ITO/PEDOT/blue polymer/Ba/Al/green polymer/Ba/Al/red polymer/Ba/Al, where PEDOT is poly(styrene sulfonic acid), functioning as the hole transportation, injection, and ITO surface modification, Ba: barium electron injection cathode, Al: aluminum, acting as the protecting layer from Ba oxidized. All polymer layers were prepared by spin-coating technique. The blue, green and red emission intensities can separately be controlled. Possible electroluminescence (EL) mechanisms were discussed in this paper.
Related Topics
Physical Sciences and Engineering Materials Science Biomaterials
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