Salt-embedded carbon nanodots as a UV and thermal stable fluorophore for light-emitting diodes

T.H. Kim, F. Wang, Paul Mccormick, L. Wang, C.L. Brown, Q. Li

    Research output: Contribution to journalArticle

    37 Citations (Scopus)

    Abstract

    UV and thermal stable, photoluminescent carbon dots (CDs) prepared by embedding CDs in ionic salt crystals such as NaCl, KCl, KBr are demonstrated. The salt crystal embedding matrix does not interfere with CDs strong emission, and provides effective protection to CDs from the environment. The degradation of 20% of the initial luminescence intensity of salt-encapsulated CDs (S-CDs) is 15 times slower under UV and 6 times slower under heat compared to that of CDs in silica matrix. We also demonstrate that the S-CDs can be applied as a color-converting phosphor for typical GaN UV light emitting diodes (LEDs) with significant improvements in stability as well as processability. © 2014 Elsevier B.V.
    Original languageEnglish
    Pages (from-to)1-7
    JournalJournal of Luminescence
    Volume154
    DOIs
    Publication statusPublished - 2014

    Fingerprint Dive into the research topics of 'Salt-embedded carbon nanodots as a UV and thermal stable fluorophore for light-emitting diodes'. Together they form a unique fingerprint.

  • Cite this