Bright white up-conversion emission from sol–gel derived Yb3+/Er3+/Tm3+: Y2SiO5 nanocrystalline powders

Murat Erdem*, Olgun Erguzel, Mete K. Ekmekci, Humeyra Orucu, Hatun Cinkaya, Seval Genc, Ayhan Mergen, Gonul Eryurek, Baldassare Di Bartolo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Bright white up conversion emission has been observed in sol–gel derived Yb3+/Er3+/Tm3+: Y2SiO5 nanocrystalline powders when excited with the 950 nm emission of a laser diode. Measurements of the sample emission intensity dependence on the pumping power were performed to explain the up conversion mechanism. The CIE chromaticity coordinates (x, y) for white emission in X2–Y2SiO5 nanocrystalline form were found to be (0.334, 0.332) under 950 nm laser diode excitation.

Original languageEnglish
Pages (from-to)12805-12810
Number of pages6
JournalCeramics International
Volume41
Issue number10
DOIs
Publication statusPublished - Dec 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd and Techna Group S.r.l.

Funding

This study was financially supported by the Scientific Research Projects Unit (BAPKO) of Marmara University with the Project number FEN-E-120613-0266 . This work was also partially supported by TUBITAK with project number 114F491 .

FundersFunder number
TUBITAK114F491
Marmara ÜniversitesiFEN-E-120613-0266
Firat University Scientific Research Projects Management Unit

    Keywords

    • Nanophosphors
    • Sol–gel
    • Upconversion
    • White light

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