Luminescent ZnSe:Mn/ZnS@PMMA nanocomposites with improved refractive index and transparency
Authors:
- Katarzyna Matras-Postolek,
- Karolina Chojnacka-Gorka,
- Michael Bredol,
- Krzysztof Guguła
Abstract
This paper deals with development of a novel ZnSe:Mn/ZnS@PMMA nanocomposites fabricated via simple film casting methods using commercial available PMMA resin (DEGALAN® Evonik). Hydrophobic ZnSe:Mn/ZnS nanoparticles were successfully produced by the hot-injection method using high boiling point organic solvents. ZnSe:Mn colloidal nanoparticles were protected from luminescence quenching and degradation by overcoating with a ZnS shell. The coverage of the nanoparticles with three layers of the ZnS shell effectively protected them against photooxidation and quenching in organic solvents. The crucial step in the production of highly transparent and luminescent ZnSe:Mn/ZnS@PMMA polymer nanocomposites was the purification of the ZnSe:Mn/ZnS nanoparticles from by-products and unreacted precursors. The optical properties of ZnSe:Mn/ZnS@PMMA nanocomposites were characterized by UV–Vis and spectroscopic ellipsometry measurements. All nanocomposite films demonstrated high transmittance in the visible range (70–90%), an intense orange emission originating from homogeneously dispersed ZnSe:Mn/ZnS nanoparticles. The intensity of the orange emission increased with increasing ZnSe:Mn/ZnS nanoparticle concentration in the nanocomposite up to a quantum yield (QY) of 19% ± 5 for a nanocomposite with nanoparticles content up to 7% wt. These novel polymer nanocomposites exhibited good optical properties (high refractive index of 1.59 at 450 nm) and stability under ambient conditions and can be easily deposited over large areas by printing process.
- Record ID
- CUT3f8d387020b7420886e0c740a9619d3a
- Publication categories
- ;
- Author
- Journal series
- Journal of Luminescence, ISSN 0022-2313, e-ISSN 1872-7883
- Issue year
- 2018
- Vol
- 203
- Pages
- 655-662
- Other elements of collation
- fot.; rys.; wykr.; Bibliografia (na s.) - 661-662; Bibliografia (liczba pozycji) - 31; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 203
- Keywords in English
- nanocomposites, polymer-matrix composites, optical properties
- DOI
- DOI:10.1016/j.jlumin.2018.06.082 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0022231318304216 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 35
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT3f8d387020b7420886e0c740a9619d3a/
- URN
urn:pkr-prod:CUT3f8d387020b7420886e0c740a9619d3a
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.