Efficient white light emission in conjugated polymer homojunctions

Guey Kai Ho, Hsin-Fei Meng*, Shi Chang Lin, Sheng Fu Homg, Chain-Shu Hsu, Lai Cheng Chen, Shu Mei Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


We study polymer light-emitting diodes with a homojunction, i.e., junction between two layers with the same host material. One layer is poly (9,9-dioctylfluorene-2,7-diyl) (PFO) host blended with a small amount of poly (2-methoxy-5 (2'-ethyl-hexyloxy)-l,4-phenylene vinylene), another layer is either pure PFO or PFO host blended with green-emitting polyfluorene copolymers. Such homojunction devices are solution processed and show efficient white light emission. The peak luminance 3000 cd/m 2 is reached at 10 V with Internationale de L'Eclairage (CIE) coordinate (0.34, 0.34).

Original languageEnglish
Pages (from-to)4576-4578
Number of pages3
JournalApplied Physics Letters
Issue number20
StatePublished - 15 Nov 2004


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