Electroluminescent characteristics of conjugated polymer/ionomer blend devices according to ionic contents

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Fluorescent polymer and poly (sodium 4-styrenesulfonate) ionomer (PSS-ionomer) blends were used as emitting layers in polymer light-emitting diodes (LEDs). The two polymers were blended in the optimal ratio which shows the highest luminescent intensity due to dilution effect. We changed the ionic contents of ionomer from 5 mol% to 10 mol% with fixed optimal blended ratio. We obtained the narrow spectrum having high color purity in the blend system. The conjugated polymer/PSS-ionomer blend devices achieved a more enhanced luminescent efficiency as compared with that of the conjugated polymer/PS device due to polar groups in the PSS-ionomer, which enhance the electron injection from the cathode to the emitting molecules.
Publisher
TAYLOR FRANCIS LTD
Issue Date
2006-01
Language
ENG
Article Type
Article; Proceedings Paper
Keywords

LIGHT-EMITTING DIODE

Citation

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.444, no.1, pp.107 - 112

ISSN
1542-1406
URI
http://hdl.handle.net/10203/4432
Appears in Collection
CBE-Journal Papers(저널논문)

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