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|Title:||Effect of parylene layer on the performance of OLED||Authors:||Ke, L.
|Keywords:||Hole transporting layer
Indium tin oxide
|Issue Date:||Apr-2004||Citation:||Ke, L., Kumar, R.S., Zhang, K., Chua, S.-J., Wee, A.T.S. (2004-04). Effect of parylene layer on the performance of OLED. Microelectronics Journal 35 (4) : 325-328. ScholarBank@NUS Repository. https://doi.org/10.1016/S0026-2692(03)00238-6||Abstract:||An organic light-emitting device structure with a thin parylene layer deposited by low-temperature chemical vapour deposition at the anode-organic interface was fabricated. Such a structure gives higher luminescence efficiency when operated at the same current density compared to one without the parylene layer. In addition, the devices with a thin parylene layer also show a smaller number and smaller size dark non-emissive areas, slower growth rate of the dark areas and a longer device lifetime. The modified surface of the indium tin oxide (ITO) shows an increased work function compared to that of the ITO surface alone and a reduced surface roughness, which contributes to the device performance improvement. The parylene layer is a conformal coating on the ITO surface, which could significantly stabilise the interface leading to a more uniform current density. It also provides a good barrier for blocking oxygen and moisture diffusion and hence reducing dark spot occurrence. © 2003 Published by Elsevier Ltd.||Source Title:||Microelectronics Journal||URI:||http://scholarbank.nus.edu.sg/handle/10635/98682||ISSN:||00262692||DOI:||10.1016/S0026-2692(03)00238-6|
|Appears in Collections:||Staff Publications|
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