Characteristics of Amorphous Indium Zinc Oxide Anode Films on Polycarbonate Substrate for Flexible Organic Light Emitting Diode

Abstract:

Electrical, optical, and structural properties of amorphous indium zinc oxide (IZO) anode films grown on flexible polycarbonate (PC) substrate were investigated. The x-ray diffraction (XRD) result shows that the IZO film grown at room temperature is complete amorphous structure due to low substrate temperature. A sheet resistance of 34.1 ,/
, average transmittance above 88.9% in visible range, and root mean spare roughness of 3.5~10.5 Å were obtained even in the amorphous IZO anode film grown on PC substrate at room temperature. It is shown that the Ir(ppy)3 doped-flexible organic light emitting diode (OLED) fabricated on the amorphous IZO anode exhibit comparable current-voltage-luminance characteristics as well as external quantum efficiency and power efficiency to OLED fabricated on conventional ITO/glass substrate. These findings indicate that the IZO anode film is a promising anode material for the fabrication of flexible OLEDs.

• Periodical: Solid State Phenomena (Volumes 124-126)
• Pages: 399-402
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.124-126.399
• Online since: June 2007
• Authors: Han Ki Kim, Jung Hyeok Bae, Jong Min Moon, Sang Woo Kim, Soon Wook Jeong, Do Geun Kim, Jae Wook Kang
• Keywords: Anode, Flexible Display, Indium Zinc Oxide, OLED, Polycarbonate

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DOI: 10.1016/s0379-6779(01)00593-8

[1] 10 10-6 1x10-5 1x10-4 10-3 10-2 10-1 100 101 102 10-1 100 101 102 103 104 105 Luminance (cd/m 2) Current density (mA/cm 2) Voltage (V) IZO on PC ITO (Ref. ) (a).

[10] -2.

[10] -1.

[10] [0] [10] [1] [10] [2] [10] [1] [10] [2] [10] [1] [10] [2] Power efficiency (lm/W) IZO on PC ITO (Ref. ) Current density (mA/cm.

[2] ) Quantum efficiency (%) (b).