Degradation and Failures of Polymers Used in Light-Emitting Diodes
Maryam Yazdan Yazdan Mehr (TU Delft - Electronic Components, Technology and Materials)
Williem van Driel (TU Delft - Electronic Components, Technology and Materials)
Guo Qi Zhang (TU Delft - Electronic Components, Technology and Materials)
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Abstract
In this chapter, degradation mechanisms of optical materials, used in the light-emitting diode (LED)-based products, are explained. This chapter aims at describing the service conditions on the degradation mechanisms of different organic optical materials in LEDs which lead to the color shift of the light output. The contributions of different degradation mechanisms of optical and package materials in LED-based products to color shift are thoroughly explained.