The Effect of Polyvinylpyrrolidone on the Optical Properties of the Ni-Doped ZnS Nanocrystalline Thin Films Synthesized by Chemical Method
Joint Authors
Tinh, Le Van
Trung, Vu Quoc
Thi, Tran Minh
Ben, Pham Van
Van, Bui Hong
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We report the optical properties of polyvinyl-pyrrolidone (PVP) and the influence of PVP concentration on the photoluminescence spectra of the PVP (PL) coated ZnS : Ni nanocrystalline thin films synthesized by the wet chemical method and spin-coating.
PL spectra of samples were clearly showed that the 520 nm luminescence peak position of samples remains unchanged, but their peak intensity changes with PVP concentration.
The PVP polymer is emissive with peak maximum at 394 nm with the exciting wavelength of 325 nm.
The photoluminescence exciting (PLE) spectrum of PVP recorded at 394 nm emission shows peak maximum at 332 nm.
This excitation band is attributed to the electronic transitions in PVP molecular orbitals.
The absorption edges of the PVP-coated ZnS : Ni0.3% samples that were shifted towards shorter wavelength with increasing of PVP concentration can be explained by the absorption of PVP in range of 350 nm to 400 nm.
While the PVP coating does not affect the microstructure of ZnS : Ni nanomaterial, the analyzed results of the PL, PLE, and time-resolved PL spectra and luminescence decay curves of the PVP and PVP-coated ZnS : Ni samples allow to explain the energy transition process from surface PVP molecules to the Ni2+ centers that occurs via hot ZnS.
American Psychological Association (APA)
Thi, Tran Minh& Tinh, Le Van& Van, Bui Hong& Ben, Pham Van& Trung, Vu Quoc. 2012. The Effect of Polyvinylpyrrolidone on the Optical Properties of the Ni-Doped ZnS Nanocrystalline Thin Films Synthesized by Chemical Method. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-1029241
Modern Language Association (MLA)
Thi, Tran Minh…[et al.]. The Effect of Polyvinylpyrrolidone on the Optical Properties of the Ni-Doped ZnS Nanocrystalline Thin Films Synthesized by Chemical Method. Journal of Nanomaterials No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-1029241
American Medical Association (AMA)
Thi, Tran Minh& Tinh, Le Van& Van, Bui Hong& Ben, Pham Van& Trung, Vu Quoc. The Effect of Polyvinylpyrrolidone on the Optical Properties of the Ni-Doped ZnS Nanocrystalline Thin Films Synthesized by Chemical Method. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-1029241
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029241