Luminescence of Nd-enriched silicon nanoparticle glasses

Interaction between rare-earth ions and amorphous silicon nanoclusters produced at low processing temperatures

“…The standard 4 I 11/2 -4 I 15/2 and 4 I 13/2 -4 I 15/2 bands at 980 and 1535 nm were observed for Er-doped nanoclusters, and for the case of Nd-doping, the complete set of emission bands centered at 800, 900, 1100, and 1350 nm were observed. This luminescence has been described in our recent papers [4,25]. In the case of Yb, the 2 F 5/2 -2 F 7/2 transition occurs in the PL spectrum at a wavelength of 980 nm, on the longwavelength side of the broad nanocluster luminescence band.…”

“…Silicon nanocrystal composites doped with erbium have been widely investigated for potential optical applications. There have also been a few reports on silicon nanocomposites doped with neodymium [3][4][5] and ytterbium [6], and at least two similar papers on silicon nanocrystals doped with Er, Nd, Yb, and Tb although the work focused on erbium [7,8].…”

Challenges in Ceramic Science: A Report from the Workshop on Emerging Research Areas in Ceramic Science

“…Nanoparticle glasses (i.e., glasses containing metal, semiconductor, or semiconducting oxide nanoparticles) are poised to take advantage of nanoplasmoncs to create new nonlinear optics, luminescent and scintillation glasses for sensors and information technology. The progress already made in this field (largely theory and nanofabrication of plasmonic thin film devices) can now be combined with existing knowledge about crystallization in glasses to control the processing and properties of nanoparticle glasses to create a new class of optical and waveguide materials . The incorporation of heavy‐metal oxide rare earth nanoparticles could be especially valuable for the next generation of scintillation detectors required for the Large Hadron Collider (http://www.lhc.ac.uk/).…”

Modeling of optical amplifier waveguide based on silicon nanostructures and rare earth ions doped silica matrix gain media by a finite-difference time-domain method: comparison of achievable gain with Er3+or Nd3+ions dopants

“…Several studies 3,4 have pointed out that silicon nanograins are efficient sensitizers of Er 3+ ions and can increase its effective absorption cross section by a factor up to 10 4 . MacDonald et al 5 showed a likewise efficient sensitization of Nd 3+ ions by those Si-ng sensitizers.…”