Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell

Anita S. Ethiraj; Neha Hebalkar; S. K. Kulkarni; Renu Pasricha; J. Urban; C. Dem; M. Schmitt; W. Kiefer; L. Weinhardt; S. Joshi; R. Fink; C. Heske; C. Kumpf; E. Umbach

doi:10.1063/1.1566932

Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell

Anita S. Ethiraj, Neha Hebalkar, S. K. Kulkarni, Renu Pasricha, J. Urban, C. Dem, M. Schmitt, W. Kiefer, L. Weinhardt, S. Joshi, R. Fink, C. Heske, C. Kumpf, E. Umbach

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Abstract

Silica-protected, thioglycerol-(TG-) capped, highly luminescent, ZnS:Mn nanoparticles were synthesized. The resultant nanoparticles show a clear enhancement of photoluminescence intensity as compared to TG-capped ZnS:Mn nanoparticles without silica coating. The PL intensity peaks around 600 nm indicate that PL stems from embedded Mn ions after the irradiation is transferred from the excited ZnS to the Mn atoms. The silica shells did not modify the photoluminescence excitation or emission spectra except for changing the intensities. The silica shell was found to be semitransparent to UV and visible radiation.

Original language	English (US)
Pages (from-to)	8945-8953
Number of pages	9
Journal	Journal of Chemical Physics
Volume	118
Issue number	19
DOIs	https://doi.org/10.1063/1.1566932
State	Published - May 15 2003

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell",

abstract = "Silica-protected, thioglycerol-(TG-) capped, highly luminescent, ZnS:Mn nanoparticles were synthesized. The resultant nanoparticles show a clear enhancement of photoluminescence intensity as compared to TG-capped ZnS:Mn nanoparticles without silica coating. The PL intensity peaks around 600 nm indicate that PL stems from embedded Mn ions after the irradiation is transferred from the excited ZnS to the Mn atoms. The silica shells did not modify the photoluminescence excitation or emission spectra except for changing the intensities. The silica shell was found to be semitransparent to UV and visible radiation.",

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T1 - Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell

AU - Ethiraj, Anita S.

AU - Hebalkar, Neha

AU - Kulkarni, S. K.

AU - Pasricha, Renu

AU - Urban, J.

AU - Dem, C.

AU - Schmitt, M.

AU - Kiefer, W.

AU - Weinhardt, L.

AU - Joshi, S.

AU - Fink, R.

AU - Heske, C.

AU - Kumpf, C.

AU - Umbach, E.

PY - 2003/5/15

Y1 - 2003/5/15

N2 - Silica-protected, thioglycerol-(TG-) capped, highly luminescent, ZnS:Mn nanoparticles were synthesized. The resultant nanoparticles show a clear enhancement of photoluminescence intensity as compared to TG-capped ZnS:Mn nanoparticles without silica coating. The PL intensity peaks around 600 nm indicate that PL stems from embedded Mn ions after the irradiation is transferred from the excited ZnS to the Mn atoms. The silica shells did not modify the photoluminescence excitation or emission spectra except for changing the intensities. The silica shell was found to be semitransparent to UV and visible radiation.

AB - Silica-protected, thioglycerol-(TG-) capped, highly luminescent, ZnS:Mn nanoparticles were synthesized. The resultant nanoparticles show a clear enhancement of photoluminescence intensity as compared to TG-capped ZnS:Mn nanoparticles without silica coating. The PL intensity peaks around 600 nm indicate that PL stems from embedded Mn ions after the irradiation is transferred from the excited ZnS to the Mn atoms. The silica shells did not modify the photoluminescence excitation or emission spectra except for changing the intensities. The silica shell was found to be semitransparent to UV and visible radiation.

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DO - 10.1063/1.1566932

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JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

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ER -

Enhancement of photoluminescence in manganese-doped ZnS nanoparticles due to a silica shell

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