Hydrogenated In-doped ZnO Thin Films for the New Anode Material of Organic Light Emitting Devices: Synthesis and Application Test

Bulletin of the Korean chemical society

Donggeun Jung¹  Young Ran Park¹  Young Sung Kim¹  Eunkyoung Nam¹  Su Jeong Suh¹  Jin-Hyo Boo¹ 

关键词: Indium doped zinc oxide (IZO);    Hydrogen effect;    Organic light emitting diodes (OLEDs);    Pulsed DC magnetron sputtering;    Transparent conducting oxide;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Transparent In-doped (1 at.%) zinc oxide (IZO) thin films are deposited by pulsed DC magnetron sputtering with H2 mixed Ar atmosphere on glass substrate without any heating process. Even at room temperature, highly c-axis oriented IZO thin films were grown in perpendicular to the substrate. The hydrogenated IZO (IZO:H) film isolated in H2 atmosphere for 30 min exhibited an average optical transmittance higher than 85% and low electrical resistivity of less than 2.7 �? 10^?3 ヘ·cm. These values are comparable with those of commercially available ITO. Each of the IZO films was used as an anode contact to fabricate organic light-emitting diodes (OLEDs) and the device performances studied. At the current density of 1 �? 10³ A/m², the OLEDs with IZO:H (H₂) anode show excellent efficiency (11 V drive voltage) and a good brightness (8000 cd/m²) of the light emitted from the devices, which are as good as the control device built on a commercial ITO anode.

【 授权许可】

Unknown