Progress in Understanding Color Maintenance in Solid-State Lighting Systems

Research output: Contribution to journalReview articlepeer-review

16 Citations (Scopus)
25 Downloads (Pure)


In this paper, progresses of color maintenance, also known as color shift, in solid-state lighting (SSL) systems are thoroughly reviewed. First, color shift is introduced and a few examples are given from different real-life industrial conditions. Different degradation mechanisms in different parts of the system are also explained. Different materials used as lenses/encapsulants in light-emitting diode (LED)-based products are introduced and their contributions to color shift are discussed. Efforts put into standardization, characterizing, and predicting lumen maintenance are also briefly reviewed in this paper.

Original languageEnglish
Pages (from-to)170-178
Number of pages9
Issue number2
Publication statusPublished - 2015

Bibliographical note

Advanced Materials and Materials Genome—Review


  • color shift
  • light-emitting diode (LED)
  • lumen degradation
  • lumen depreciation


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