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Electrochemical Depositon of End-Capped Triarylamine and CBP Dendrimers: Alternate Technique for the Fabrication of Organic Light-Emitting Devices

Published online by Cambridge University Press:  26 February 2011

Ho-Jin Son
Affiliation:
sonaudo1@korea.ac.kr, Korea University, Advanced material chemistry, Korea University, 208 Seochang, Chochiwon, chung-nam, 339-700, Korea, Republic of
Won-Sik Han
Affiliation:
woden0411@korea.ac.kr, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
Ji-Yun Chun
Affiliation:
bon_ange@hanmail.net, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
Kyung Ryang Wee
Affiliation:
wkry2@hanmail.net, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
Dae Hyun Kim
Affiliation:
my---mail@hanmail.net, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
Kuk-Wha Lee
Affiliation:
willie06@hanmail.net, Ewha Womans University, Department of chemistry, 11-1 Daehyun-dong, Seoul, 120-750, Korea, Republic of
Ha Jin Jung
Affiliation:
hajin_jung@hanmail.net, Ewha Womans University, Department of chemistry, 11-1 Daehyun-dong, Seoul, 120-750, Korea, Republic of
Chongmok Lee
Affiliation:
cmlee@ewha.ac.kr, Ewha Womans University, Department of chemistry, 11-1 Daehyun-dong, Seoul, 120-750, Korea, Republic of
Jaejung Ko
Affiliation:
jko@korea.ac.kr, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
Sang Ook Kang
Affiliation:
sangok@korea.ac.kr, Korea University, Advanced material chemistry, 208 Seochang, Jochiwon, 339-700, Korea, Republic of
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Abstract

Carbosilane dendrimers adorned with either triarylamine or carbazole units in their periphery exhibit novel electrochemical behavior in which the electrochemical deposition is controlled by dendrite generation. In addition, the deposited layers remained intact in the depositing solvent, methylene chloride, allowing a second layer to be deposited on top of the first layer. We have sought to establish the suitability of this electrochemical deposition technique for use in the construction of multi-layer OLEDs, which cannot be fabricated via conventional spin-coating with a polymeric precursor. Thus, the electrochemical deposition-based process could potentially offer an ideal combination of deposition control on the one hand and multi-layer fabrication on the other. We report herein the novel electrochemical deposition behavior of arylamine or carbazole end-capped carbosilane dendrimers of the type GnNPB or GnCBP (n = 1-4) and their use for the formation of multi-layer devices for OLEDs.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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References

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