Title

White Light Emission From Surface-Oxidized Manganese-Doped Zns Nanorods

Abstract

Mn-doped ZnS nanorods synthesized on zinc foils by a solvothermal approach exhibited white light emission upon excitation in the UV range (300-330 nm). X-ray diffraction studies coupled with energy-dispersive X-ray analysis and X-ray photoelectron spectroscopy indicated the presence of a thin oxide layer on the Mn-doped ZnS nanorods. The diameters and lengths of the nanorods varied within the ranges 5-12 and 50-100 nm, respectively. The emitted white light was found to be the result of blue, green, and orange emission bands. The blue bands at ∼400 and 459 nm were attributed to sulfur vacancies and surface states, respectively. The green band at ∼511 nm was associated with the singly ionized oxygen vacancy of the ZnO shell layer. The orange emission originated from the 4T1-6A1 transition of the Mn2+ ions. Thus, the emissions from the Mn-doped ZnS core and the outer ZnO shell combine together to produce the white light. © 2008 American Chemical Society.

Publication Date

7-31-2008

Publication Title

Journal of Physical Chemistry C

Volume

112

Issue

30

Number of Pages

11144-11149

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/jp800181r

Socpus ID

49449096918 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/49449096918

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