Photoluminescence of Cd1-xMnxS (x ≤ 0.3) nanowires

Chan Woong Na, Doo Suk Han, Dae Sung Kim, Young Joo Kang, Jin Young Lee, Jeunghee Park, Dong Keun Oh, Kil Suk Kim, Dongho Kim

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)

Abstract

Cd1-xMnxS (x = 0.1-0.3) nanowires were synthesized by using the chemical vapor deposition method. They all consist of a single-crystalline wurtzite CdS structure with a [010] or [011] growth direction. The X-ray diffraction pattern reveals the contraction of the lattice constants due to the incorporation of Mn. The Mn2+ emission at ∼2.15 eV, originating from the d-d (4T16A1) transition, appears below 50-80 K. Its decay time is in the range of 0.55-1 ms, showing a decrease with increasing Mn content. The Mn doping reduces significantly the decay time of band-edge emission from 590 ps to 20-30 ps. Upon applying magnetic field (up to 7 T), the Mn2+ emission is suppressed and donor-acceptor pair emission becomes dominant, suggesting the energy transfer from the band electrons to the Mn2+ ions.

Original languageEnglish
Pages (from-to)6699-6704
Number of pages6
JournalJournal of Physical Chemistry B
Volume110
Issue number13
DOIs
Publication statusPublished - 2006 May 6

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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