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Hole injection and power efficiency of organic light emitting diodes with ultra-thin inorganic buffer layer on indium tin oxide

Authors Qiu, Chengfeng
Chen, Haiying
Xie, Zhiliang
Wong, Man
Kwok, Hoi-Sing
Issue Date 2002
Source Society for Information Display International Symposium Digest of Technical Papers , v.33, (2), 2002, p. 1262-1265
Summary ITO capped with a variety of ultra-thin metal layers such as platinum, manganese, nickel, gold, lead, magnesium, and non-metal layer such as, carbon, gallium, silicon, has been used as hole-injecting anode in organic light-emitting diodes consisting of CuPc/TPD/Alq3. Enhancement in hole injection but not current nor power efficiencies have been obtained in devices with metal-capped ITO, regardless of the work-function of the metals. For devices with silicon-capped anodes, improvements in hole injection, current and power efficiencies have been obtained.
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Language English
Format Conference paper
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