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

doi:10.1021/jp060224p

Photoluminescence of Cd_1-xMn_xS (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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

Cd_1-xMn_xS (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 (⁴T₁ → ⁶A₁) 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 language	English
Pages (from-to)	6699-6704
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	13
DOIs	https://doi.org/10.1021/jp060224p
Publication status	Published - 2006 May 6

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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title = "Photoluminescence of Cd1-xMnxS (x ≤ 0.3) nanowires",

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 (4T1 → 6A1) 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.",

author = "Na, {Chan Woong} and Han, {Doo Suk} and Kim, {Dae Sung} and Kang, {Young Joo} and Lee, {Jin Young} and Jeunghee Park and Oh, {Dong Keun} and Kim, {Kil Suk} and Dongho Kim",

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T1 - Photoluminescence of Cd1-xMnxS (x ≤ 0.3) nanowires

AU - Na, Chan Woong

AU - Han, Doo Suk

AU - Kim, Dae Sung

AU - Kang, Young Joo

AU - Lee, Jin Young

AU - Park, Jeunghee

AU - Oh, Dong Keun

AU - Kim, Kil Suk

AU - Kim, Dongho

PY - 2006/5/6

Y1 - 2006/5/6

N2 - 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 (4T1 → 6A1) 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.

AB - 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 (4T1 → 6A1) 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.

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Photoluminescence of Cd_1-xMn_xS (x ≤ 0.3) nanowires

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