Journal
ACS NANO
Volume 3, Issue 8, Pages 2258-2264Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn900406n
Keywords
organic light-emitting diodes; carbon nanotubes; surface modification; roughness; PEDOT:PSS
Categories
Funding
- IMRE [IMRE/06-1R0140]
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In this work, we reported high performance OILED 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 similar to 9000 cd/m(2), close to ITO-based OLED device performance, and high efficiency of similar to 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.
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