Strong 1.54 μm cathodoluminescence from core-shell structures of silicon nanoparticles and erbium

Tuan Hoang, Noha Elhalawany, Brian Enders, Ersin Bahceci, Laila Abuhassan, Munir H. Nayfeh

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the development of efficient infrared-active core-shell Er2O3-Si nanoparticle architecture. Sub 3-nm H-terminated Si nanoparticles are used to reduce/deposit Er3+ ions on the nanoparticles, which in an aqueous environment simultaneously oxidize to produce the core-shells. Our results show strong cathodoluminance at 1543 nm while being able to resolve the Stark splitting. The strong luminescence afforded by the core-shell architecture in which the Si-Er interspacing drops appreciably supports a sensitive interspacing-dependent dipole-dipole energy transfer interaction model, while the hydrogenated silicon-core allows increased loading and reduced segregation of Er as in amorphous silicon material. The room temperature-wet procedure, with pre-prepared and -sorted Si nanostructures affords promising applications in electronic and optical technologies.

Original languageEnglish (US)
Article number261103
JournalApplied Physics Letters
Volume109
Issue number26
DOIs
StatePublished - Dec 26 2016

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Strong 1.54 μm cathodoluminescence from core-shell structures of silicon nanoparticles and erbium'. Together they form a unique fingerprint.

Cite this