Pump-dependent luminescence in the Ag nanoparticles doped by Erbium

J. Ebothe, K. Ozga, Ali Umar Akrajas, M. Oyama, I. V. Kityk

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A substantial spectral shift of the UV-laser induced luminescence in the Ag nanoparticles (NP) doped by Er3+ ions attached to ITO substrates was observed at T = 4.2 K. We have established high energy spectral shift of principal luminescent maxima (from wavelength equal to about 1.45 up to 1.15 μm) with increasing of the pumping nanosecond nitrogen laser power density up to 1.1 GW/cm2 operating at λ = 337 nm. With increasing Erbium content with respect to Ag the spectral shift and spectral line broadening increase. It may be caused by specific features of trapping level occupation kinetics on interfaces NP/ITO substrate. The observed process is fully reversible. The luminescence is observed only during excitation by the 337 nm laser pulses and is absent for laser pulses operating at other wavelengths (like excimer laser at 218 nm and nitrogen laser at 371 nm).

Original languageEnglish
Pages (from-to)1626-1630
Number of pages5
JournalApplied Surface Science
Volume253
Issue number3
DOIs
Publication statusPublished - 30 Nov 2006
Externally publishedYes

Fingerprint

Erbium
erbium
Luminescence
nitrogen lasers
Pumps
luminescence
pumps
Nanoparticles
ITO (semiconductors)
nanoparticles
Lasers
Laser pulses
shift
Nitrogen
lasers
Pumping (laser)
Wavelength
Excimer lasers
Substrates
pulses

Keywords

  • Nanoparticles
  • Optical properties

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

Cite this

Pump-dependent luminescence in the Ag nanoparticles doped by Erbium. / Ebothe, J.; Ozga, K.; Akrajas, Ali Umar; Oyama, M.; Kityk, I. V.

In: Applied Surface Science, Vol. 253, No. 3, 30.11.2006, p. 1626-1630.

Research output: Contribution to journalArticle

Ebothe, J. ; Ozga, K. ; Akrajas, Ali Umar ; Oyama, M. ; Kityk, I. V. / Pump-dependent luminescence in the Ag nanoparticles doped by Erbium. In: Applied Surface Science. 2006 ; Vol. 253, No. 3. pp. 1626-1630.
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AU - Kityk, I. V.

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