Effects of Graphene Monolayer Coating on the Optical Performance of Remote Phosphors

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A graphene monolayer has been successfully coated on one side of a bisphenol-A-polycarbonate (BPA-PC) plate, used as a substrate for remote phosphor applications in light-emitting diode (LED)-based products. Using a photoresist transferring method, graphene sheet has been coated on BPA-PC plates. The results show that this graphene monolayer significantly improves the lifetime and performance of LEDs mainly by protecting them against external degradation factors such as moisture and oxygen. Also, LED-based products composed of graphene-coated BPA-PC plates exhibit longer stability with comparatively less loss of luminous efficiency. This method has great potential to significantly improve the reliability of not only LED-based products but also many other microelectronics packaging and components, in which moisture and oxygen are the key causes of failures.

Original languageEnglish
Pages (from-to)5866-5872
Number of pages7
JournalJournal of Electronic Materials
Issue number10
Publication statusPublished - 2017


  • graphene
  • Light-emitting diode
  • reliability
  • remote phosphor

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