Unusual and strong emission in visible region from Mn2+ and Y3+ doped ZnO nanocrystals
IR@CMERI: CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur
View Archive Info| Field | Value | |
| Title |
Unusual and strong emission in visible region from Mn2+ and Y3+ doped ZnO nanocrystals
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| Creator |
Mondal, Oindrila
Pal, Mrinal |
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| Subject |
Materials
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| Description |
Unusual and strong emission in the visible region has been observed from Mn2+ and Y3+ doped ZnO nanocrystals prepared by a chemical route using CTAB (cetyltrimethylammonium bromide). Various state-of the-art techniques including high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), ultraviolet–visible (UV–Vis), Fourier transform infrared (FTIR) and photoluminescence (PL) spectroscopy have been employed to characterize the prepared nanocrystals. On the basis of experimental results we have proposed a schematic band model to explain the emission observe in visible region. It is not possible to exactly pin down the origin of visible emission yet we believe that the creation of different mid gap states by virtue of microstructure manipulation and dopants are likely to play a major role.
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| Publisher |
Elsevier
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| Date |
2013
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| Type |
Article
PeerReviewed |
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| Identifier |
Mondal, Oindrila and Pal, Mrinal (2013) Unusual and strong emission in visible region from Mn2+ and Y3+ doped ZnO nanocrystals. Optical Materials, 35. pp. 1520-1525. ISSN 0925-3467
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| Relation |
http://cmeri.csircentral.net/110/
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