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Failure modes in vapor-deposited organic LED's

机译:气相沉积有机LED的故障模式

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摘要

A study of the main failure mechanisms in vacuum vapor-deposited organic light-emitting diodes (LED's) is presented. Three degradation modes were identified for a prototype bilayer ITO/TPD/Alq(3)/Mg/Ag device: a) formation and growth of black nonemissive spots, b) abrupt ceasing of light emission associated with catastrophic failures caused by electrical shorts, and c) long term wearout associated with the decrease of quantum efficiency and luminance along with an increase in voltage, while the device is stressed under constant current. [References: 13]
机译:对真空气相沉积有机发光二极管(LED)的主要失效机理进行了研究。对于原型双层ITO / TPD / Alq(3)/ Mg / Ag器件,确定了三种降解模式:a)黑色非发光点的形成和生长,b)与电短路引起的灾难性故障相关的突然停止发光,以及c)长期损耗,与量子效率和亮度的降低以及电压的升高相关,而器件在恒定电流下受力。 [参考:13]

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