Surface-Modified Nanotube Anodes for High Performance Organic Light-Emitting Diode

In this work, we reported high performance OLED devices with transparent and conductive carbon nanotube anodes after modification. The modifications include IMRE proprietary PEDOT:PSS composite top coating (PSC), concentrated HNO3 acid soaking, and polymer encapsulation. For PSC-modified nanotube th...

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Veröffentlicht in:ACS nano 2009-08, Vol.3 (8), p.2258-2264
Hauptverfasser: Ou, Eric C-W, Hu, Liangbing, Raymond, Gan Ching Ruey, Soo, Ong Kian, Pan, Jisheng, Zheng, Zhang, Park, Youngbae, Hecht, David, Irvin, Glen, Drzaic, Paul, Gruner, George
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Sprache:eng
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Zusammenfassung:In this work, we reported high performance OLED devices with transparent and conductive carbon nanotube anodes after modification. The modifications include IMRE proprietary PEDOT:PSS composite top coating (PSC), concentrated HNO3 acid soaking, and polymer encapsulation. For PSC-modified nanotube thin film anode, we achieved maximum luminescence of ∼9000 cd/m2, close to ITO-based OLED device performance, and high efficiency of ∼10 cd/A, similar with ITO-based OLED device. The performance is approximately 30 to 450 times better than that achieved for OLED devices using CNT anodes by others. In addition, we also investigate the mechanical property, work function, sheet resistance, and surface morphology of modified carbon nanotube thin-film anodes.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn900406n