Optical activation of Si nanowires using Er-doped sol-gel derived silica

Kiseok Suh, Oun Ho Park, Byeong Soo Bae, Jung Chul Lee, Heon Jin Choi, Jung H. Shin

Research output: Contribution to journalConference articlepeer-review


Optical activation of Si nanowires (Si-NWs) using sol-gel derived Er-doped silica is investigated. Si-NWs of about 100 mn diameter were grown on Si substrates by the vapor-liquid-solid method using Au catalysts and H2 diluted SiCl4. Afterwards, Er-doped silica sol-gel solution was spin-coated, and annealed at 950 °C in flowing N2/O2 environment. Such Er-doped silica/Si-NWs nanocomposite is found to combine the advantages of crystalline Si and silica to simultaneously achieve both high carrier-mediated excitation efficiency and high Er3+ luminescence efficiency while at the same time providing high areal density of Er 3+ and easy current injection, indicating the possibility of developing sol-gel activated Si-NWs as a new material platform for Si-based photonics.

Original languageEnglish
Article numberF10.5
Pages (from-to)397-402
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Publication statusPublished - 2005
Event2004 MRS Fall Meeting - Boston, MA, United States
Duration: 2004 Nov 292004 Dec 2

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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