Composites from Luminescent Nanosized ZnS and Optical Polymer

Matras, Katarzyna; Bredol, Michael; Szatkowski, Adam; Sakhno, Oksana; Stumpe, Joachim; Bogdał, Dariusz

doi:10.1080/15421400801918062

Cited by 11 publications

(7 citation statements)

References 6 publications

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“…However, nanoscaled materials in general failed to deliver meaningful AC-EL emission when embedded in printable polymers, although incorporation of photoluminescent ZnS:Mn-nanoparticles into dielectric polymers like PVDF has been demonstrated up to concentrations of more than 25% [ 33 ]. Most probably, this is due to the ligands necessary to stabilize and hydrophobize the nanoparticles; these necessarily very polar (and perhaps conductive) structures effectively reduce the local field over the nanoparticle, thus preventing excitation.…”

Section: Materials For Ac-electroluminescencementioning

confidence: 99%

Materials for Powder-Based AC-Electroluminescence

Bredol

Dieckhoff

2010

Materials

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At present, thick film (powder based) alternating current electroluminescence (AC-EL) is the only technology available for the fabrication of large area, laterally structured and coloured light sources by simple printing techniques. Substrates for printing may be based on flexible polymers or glass, so the final devices can take up a huge variety of shapes. After an introduction of the underlying physics and chemistry, the review highlights the technical progress behind this development, concentrating on luminescent and dielectric materials used. Limitations of the available materials as well as room for further improvement are also discussed.

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Section: Materials For Ac-electroluminescencementioning

confidence: 99%

Materials for Powder-Based AC-Electroluminescence

Bredol

Dieckhoff

2010

Materials

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“…The peak broadening in the XRD patterns clearly indicates the formation of ZnS nanoparticles of small size [23,24]. Three characteristic peaks were observed for ZnS/PMMA nanocomposites corresponding to the lattice planes of (111), (220), and (311) that matched well with the cubic ZnS structure (JCPDS number 05-0566) [25]. It is worth noting that the peak percentage and intensity of inorganic phase in a nanocomposite sample are low but the signal corresponding to the most abundant crystallographic planes of PMMA matrix can be detected at diffraction angle 2 = 10-20 ∘ [24, [26][27][28].…”

Section: X-ray Diffraction Patternsmentioning

confidence: 99%

“…EDX spectrum of ZnS/PMMA nanocomposites reveals that the prepared nanocomposites are mainly composed of zinc and sulfur atoms within the scan area, confirming the presence of ZnS nanoparticles in PMMA matrix. Other traces of elements like carbon and oxygen are observed possibly due to the use of carbon tape and retained solvent after the deposition step [25]. The intense Au peaks are due to gold and palladium coating which was used to overcome charging of samples.…”

Section: Sem and Edx Of The Metal Sulfides Nanocomposites The Sem MImentioning

confidence: 99%

Synthesis and Characterization of Metal Sulfides Nanoparticles/Poly(methyl methacrylate) Nanocomposites

Ajibade

Mbese

2014

International Journal of Polymer Science

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Metal sulfides nanoparticles in poly(methyl methacrylate) matrices were prepared and characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction, scanning electron microscope (SEM), and transmission electron microscope (TEM). The FTIR confirms the dispersion of the nanoparticles in PMMA matrices with the C=O and C–O–C bonds of the PMMA shifting slightly which may be attributed to the interactions between the nanoparticles and PMMA. The ZnS nanoparticles in PMMA have average crystallite sizes of 4–7 nm while the CdS has particle size of 10 nm and HgS has crystallite sizes of 8–20 nm. The increasing order of particle sizes as calculated from the XRD is ZnS/PMMA<HgS/PMMA<CdS/PMMA and ranges from 1.02 to 1.35 nm. These calculated particle sizes are smaller than the values obtained from TEM.

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“…They possess interesting optical, electronic, chemical, and electrochemical properties that are useful for a wide variety of applications, including optoelectronics [ 15 , 16 ], catalysis [ 17 , 18 ] and sensing [ 19 ]. Among II-VI semiconducting nanoparticles, manganese-doped zinc sulfide (ZnS:Mn) nanocrystals have been substantially studied due to their unique properties and their diverse applications, including photovoltaics [ 20 , 21 ] and transparent nanocomposites [ 22 ]. Zinc sulfide is a large band-gap energy (3.6 eV) semiconductor that is well known for its photoluminescence, electroluminescence, and thermoluminescence.…”

Section: Introductionmentioning

confidence: 99%

Modification of Higher Alkanes by Nanoparticles to Control Light Propagation in Tapered Fibers

et al. 2020

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This study presents the doping of higher alkanes, namely, pentadecane (C15) and hexadecane (C16), with ZnS:Mn nanoparticles to create new types of in-line optical fiber sensors with unique optical properties. In this research, the phenomenon of light beam leakage out of the taper and its interaction with the surrounding materials is described. The fabricated new materials are used as cladding in a tapered optical fiber to make it possible to control the optical light beam. The manufactured sensor shows high sensitivity and fast response to the change in the applied materials. Results are presented for a wide optical range of 1200–1700 nm with the use of a supercontinuum source and an optical spectrum analyzer, as well as for a single wavelength of 800 nm, corresponding to the highest transmitted power. The results present a change in the optical property dependence on the temperature in the cooling and heating process. For all materials, the measurements in a climatic chamber are provided between 0 and 40 °C, corresponding to the phase change of the alkanes from solid to liquid. The addition of nanoparticles to the volume of alkanes is equal to 1 wt%. To avoid a conglomeration of nanoparticles, the anti-agglomeration material, Brij 78 P, is used.

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Composites from Luminescent Nanosized ZnS and Optical Polymer

Cited by 11 publications

References 6 publications

Materials for Powder-Based AC-Electroluminescence

Materials for Powder-Based AC-Electroluminescence

Synthesis and Characterization of Metal Sulfides Nanoparticles/Poly(methyl methacrylate) Nanocomposites

Modification of Higher Alkanes by Nanoparticles to Control Light Propagation in Tapered Fibers

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