Flexible top-emitting electroluminescent devices on polyethylene terephthalate substrates

Yanqing Li, Li Wei Tan, Xiao Tao Hao, Kian Soo Ong, Furong Zhu*, Liang Sun Hung

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

112 Citations (Scopus)


An aluminum-laminated polyethylene terephthalate (Al-PET) is used as the substrate for flexible organic light-emitting devices (OLEDs). The efficient flexible electroluminescent devices have a top-emitting OLED architecture. An acrylic layer is formed on the Al-PET surface to improve the surface morphology and also the adhesion between the substrate and the anode. Poly(styrene sulfonate)-doped poly(3,4-ethylene dioxythiophene) was used as hole transporting layer. The light-emitting polymer used is a phenyl-substituted poly(𝑝-phenylenevinylene). Bilayer anodes of Ag∕CF𝑋 and Ag/indium-tin oxide and a semitransparent top cathode were used for the flexible polymer OLEDs. For a flexible polymer OLED with a 110-nm-thick light-emitting polymer, it exhibited superior electrical and optical characteristics with a luminous efficiency of 4.56cd∕A at an operating voltage of 7.5V.

Original languageEnglish
Article number153508
Number of pages3
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 11 Apr 2005

Scopus Subject Areas

  • Physics and Astronomy (miscellaneous)


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