掺铕多孔硅的恒电位电解法制备及其光致发光

Translated title of the contribution: Preparation of Europium-doped Porous Silicon by Constant-potential Electrolysis and Photoluminescence of Porous Silicon: Eu

龚孟濂*, 曾春莲, 石建新, 黄伟国, 谢国伟, 郑婉华

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A novel electrochemical approach, constant-potential electrolysis and a new electrolyte system, rare earth nitrate-supporting electrolyte substance-nonethanol organic solvent, for doping of porous silicon(PS) with europium were reported. By this approach and system, the doping products were well controlled, and a high concentration of Eu(about 1021/cm3) was doped into PS. The effects of solvents, applied voltage, concentration of Eu(NO3)3 and doping time on photoluminescence of Eu-doped PS were investigated, and the optimum doping conditions were optimized. PS : Eu prepared under suitable conditions was found to emit much more intense visible room-temperature luminescence with blue-shift in wavelength than that of corresponding PS wafer. The photoluminescence mechanism for PS and PS : Eu was also discussed.

Translated title of the contributionPreparation of Europium-doped Porous Silicon by Constant-potential Electrolysis and Photoluminescence of Porous Silicon: Eu
Original languageChinese (Simplified)
Pages (from-to)753
Number of pages1
Journal高等学校化学学报
Volume20
Issue number5
Publication statusPublished - 10 May 1999

Scopus Subject Areas

  • Chemistry(all)

User-Defined Keywords

  • Constant-potential electrolysis
  • Europium
  • Photoluminescence
  • Porous silicon

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