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Proceedings Paper

Ionic materials to improve charge injection in polymer electroluminescent devices
Author(s): Tae-Woo Lee; Jong Hyeok Park; Ho-Chul Lee; O Ok Park
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Paper Abstract

We describe here the fabrication and characterization of novel organic electro-optic materials composed of self-assembled superlattices. The SAS structures are intrinsically acentric and exhibit large second harmonic generation and electro-optic responses. This approach using SAS electro-optic materials has advantages such as not requiring poling for creating nonlinearity in the films and efficient film growth on a variety of substrates over large areas. Prototype waveguide electro-optic modulators have been fabricated usgin SAS films integated with low-loss polymeric materials functioning as partial guiding and cladding layers. The waveguide EO modulators are fabricated using a multistep process including e-beam deposition, plasma-enhanced chemical vapor deposition, photolithography, and reactive ion etching. Electro-optic parameters such as the half-wave voltage and the effective electro-optic coefficient, and the velocity mismatch between the optical and radio frequency waves have been evaluated.

Paper Details

Date Published: 14 July 2003
PDF: 8 pages
Proc. SPIE 4991, Organic Photonic Materials and Devices V, (14 July 2003); doi: 10.1117/12.485817
Show Author Affiliations
Tae-Woo Lee, Korea Advanced Institute of Science and Technology (South Korea)
Jong Hyeok Park, Korea Advanced Institute of Science and Technology (South Korea)
Ho-Chul Lee, Korea Advanced Institute of Science and Technology (South Korea)
O Ok Park, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4991:
Organic Photonic Materials and Devices V
James G. Grote; Toshikuni Kaino, Editor(s)

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