Ionic materials to improve charge injection in polymer electroluminescent devices

Tae-Woo Lee; Jong Hyeok Park; Ho-Chul Lee; O Ok Park

doi:10.1117/12.485817

14 July 2003 Ionic materials to improve charge injection in polymer electroluminescent devices

Tae-Woo Lee, Jong Hyeok Park, Ho-Chul Lee, O Ok Park

Proceedings Volume 4991, Organic Photonic Materials and Devices V; (2003) https://doi.org/10.1117/12.485817
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

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.

Citation Download Citation

Tae-Woo Lee, Jong Hyeok Park, Ho-Chul Lee, and O Ok Park "Ionic materials to improve charge injection in polymer electroluminescent devices", Proc. SPIE 4991, Organic Photonic Materials and Devices V, (14 July 2003); https://doi.org/10.1117/12.485817

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