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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 1, Iss. 2 — Sep. 30, 1997
  • pp: 116–119

Light-emitting devices with polymer-organic heterostructure

Lee-Mi Do, Do-Hoon Hwang, Kang-Hoon Choi, Hyang-Mok Lee, Sang-Don Jung, and Taehyoung Zyung  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 1, Issue 2, pp. 116-119 (1997)


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Abstract

Highly quantum efficient and multi-color emissible polymer light emitting devices have been realized utilizing poly (1-dodecyloxy-4-methyl-1, 3-phenylene)(2, 5"-terthienylene)(hereafter, mPTTh polymer) as an emitting layer and tris(8-hydroxyquinoline) aluminum (Alq3) as an electron transport layer. A single layer EL device of mPTTh polymer emits orange-colored light. EL efficiency increases as the thickness of Alq3 layer increases, but the emission color becomes visually broad when the Alq3 layer thickness is greater than 30nm since the relative peak intensity of green EL from Alq3 layer grows. EL color is changed from orange to greenish orange as the thickness of Alq3 layer grows. EL color is changed from orange to greenish orange as the thickness of Alq3 layer increases. EL efficiency of the double layer device was greatly enhanced by 3000 times compared with that of a single layer device. Alq3 layer in device acts as a hole blocking electron transporting layer and an emitting layer as a function of the thickness of Alq3 layer.ayer.

© 1997 Optical Society of Korea

History
Original Manuscript: August 1, 1997
Published: September 1, 1997

Citation
Lee-Mi Do, Do-Hoon Hwang, Kang-Hoon Choi, Hyang-Mok Lee, Sang-Don Jung, and Taehyoung Zyung, "Light-emitting devices with polymer-organic heterostructure," J. Opt. Soc. Korea 1, 116-119 (1997)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-1-2-116


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