LED degradation: From component to system
LED degradation: From component to system
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DOI：
10.1016/j.microrel.2016.07.014
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发表时间：
2016-09-01
影响因子：
1.6
通讯作者：
van Driel, W. D.
中科院分区：
文献类型：
--
作者：
Hamon, B.;van Driel, W. D.
人类文明以人造光为中心。从最早的火光到最近的电灯，人造光一直是我们生存的核心。它使我们从日光的时间和空间限制中解放出来，让我们在白天和晚上、室内和室外都能很好地发挥作用。它从明火，蜡烛，碳弧灯，白炽灯，荧光灯演变到现在我们家门口的东西：固态照明（SSL）。SSL指的是一种使用半导体发光二极管（led）、有机发光二极管或聚合物发光二极管（OLED/PLED）作为照明源的照明方式，而不是使用电丝、等离子体（用于荧光灯等弧光灯）或气体。SSL应用程序现在正处于进入我们办公室和家庭的大规模市场的门口。这种渗透主要是由于可靠性的提高和节能的机会：一种低成本的可靠解决方案。SSL系统由一个LED引擎和一个微电子驱动器组成，集成在一个外壳中，外壳还提供光学、传感和其他功能。了解（系统）可靠性不仅对未来SSL应用程序的业务成功至关重要，而且对解决许多相关的科学挑战也至关重要。实际上，系统的故障可能是由子系统/接口的故障和/或退化引起的。本文将从组件和系统的角度描述LED退化，以解决确保SSL系统高可靠性的项目。(C) 2016 Elsevier Ltd.版权所有。
Human civilization revolves around artificial light. Since its earliest incarnation as firelight to its most recent as electric light, artificial light is at the core of our existence. It has freed us from the temporal and spatial constraints of daylight by allowing us to function equally well night and day, indoors and outdoors. It evolved from open fire, candles, carbon arc lamp, incandescent lamp, fluorescent lamp to what is now on our door step: solid state lighting (SSL). SSL refers to a type of lighting that uses semiconductor light-emitting diodes (LEDs), organic or polymer light-emitting diodes (OLED/PLED) as sources of illumination rather than electrical filaments, plasma (used in arc lamps such as fluorescent lamps), or gas. SSL applications are now at the doorstep of massive market entry into our offices and homes. This penetration is mainly due to the promise of an increased reliability with an energy saving opportunity: a low cost reliable solution. An SSL system is composed of a LED engine with a micro-electronics driver(s), integrated in a housing that also provides the optical, sensing and other functions. Knowledge of (system) reliability is crucial for not only the business success of the future SSL applications, but also solving many associated scientific challenges. In practice, a malfunction of the system might be induced by the failure and/or degradation of the subsystems/interfaces. This paper will address the items to ensure high reliability of SSL systems by describing LED degradation from a component and a system perspective. (C) 2016 Elsevier Ltd. All rights reserved.