Enhanced X-ray Excited Luminescence of LaF3:Ce/CdSeS Nanocomposites by Resonance Energy Transfer for Radiation Detection

Jinsik Ju, Hayeon Won, Jin Joo Jung, Junyeob Yeo, Phan Van Cuong, Do Hyung Kim

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

LaF3:Ce/CdSeS nanocomposites were successfully prepared by the wet-chemical synthesis method. The lattice spacing for the LaF3:Ce nanoparticles and CdSeS quantum dots were 0.323 nm and 0.205 nm, respectively, while the diameter of the nanoparticles was about 12 nm. The LaF3:Ce nanoparticles and CdSeS quantum dots were in very close proximity to each other. The x-ray-excited luminescence of CdSeS quantum dots was negligible; however, it improved significantly in the presence of LaF3:Ce, which can be ascribed to the efficient resonance energy transfer (RET) from LaF3:Ce nanoparticles to the CdSeS quantum dots in the LaF3:Ce/CdSeS nanocomposite. This RET-based approach could be applied to functional nanomaterials used in radiation detectors.

Original languageEnglish
Pages (from-to)5319-5323
Number of pages5
JournalJournal of Electronic Materials
Volume46
Issue number8
DOIs
StatePublished - 1 Aug 2017

Keywords

  • luminescence
  • Nanocomposite
  • nanomaterial
  • nanoparticle
  • quantum dot

Fingerprint

Dive into the research topics of 'Enhanced X-ray Excited Luminescence of LaF3:Ce/CdSeS Nanocomposites by Resonance Energy Transfer for Radiation Detection'. Together they form a unique fingerprint.

Cite this