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Proceedings Article

Effect of annealing treatment on Nd-SiOx thin film properties

[+] Author Affiliations
C.-H. Liang, J. Cardin, L. Khomenkova, F. Gourbilleau

CIMAP (CNRS/CEA/ENSICAEN/UCBN) (France)

Proc. SPIE 8431, Silicon Photonics and Photonic Integrated Circuits III, 84311Y (June 1, 2012); doi:10.1117/12.922349
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From Conference Volume 8431

  • Silicon Photonics and Photonic Integrated Circuits III
  • Laurent Vivien; Seppo K. Honkanen; Lorenzo Pavesi; Stefano Pelli
  • Brussels, Belgium | April 16, 2012

abstract

The series of Nd3+-doped Si-rich SiO2 thin films with different excess Si content were deposited by magnetron co-sputtering of three different (SiO2, Si and Nd2O3) targets under a plasma of pure argon at 500 °C. The Si excess content in the samples was monitored via a power applied on Si cathode. The films were submitted to the rapid thermal annealing (RTA) at 900, 1000 and 1100 °C, respectively. It was observed a phase separation and a formation of Si nanoclusters embedded in oxide host. The Si excess, remaining after a RTA-1100 °C annealing, was found to be negligible, confirmed nearly complete phase separation. The Nd3+ photoluminescence (PL) property was explored as a function of Si excess and/or annealing temperature. The most efficient Nd3+ PL emission was found for the samples with about 4.7% of Si excess. These optimal samples, submitted to RTA-900 °C-1 min treatment and conventional annealing at 900°C for 1 h in nitrogen flow, demonstrated comparable Nd3+ PL intensities. This offers future application of RTA treatment to achieve an efficient emission from the materials doped with rare-earth ions.

© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

C.-H. Liang ; J. Cardin ; L. Khomenkova and F. Gourbilleau
"Effect of annealing treatment on Nd-SiOx thin film properties", Proc. SPIE 8431, Silicon Photonics and Photonic Integrated Circuits III, 84311Y (June 1, 2012); doi:10.1117/12.922349; http://dx.doi.org/10.1117/12.922349


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