Synthesis and characterization of ZnS nanosized semiconductor particles within mesoporous solids
| dc.contributor.author | Dimos, K. | en |
| dc.contributor.author | Koutselas, I. B. | en |
| dc.contributor.author | Karakassides, M. A. | en |
| dc.date.accessioned | 2015-11-24T17:39:07Z | |
| dc.date.available | 2015-11-24T17:39:07Z | |
| dc.identifier.issn | 1520-6106 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/14592 | |
| dc.rights | Default Licence | - |
| dc.subject | quantum dots | en |
| dc.subject | optical-properties | en |
| dc.subject | nanoparticles | en |
| dc.subject | silica | en |
| dc.subject | luminescence | en |
| dc.subject | cds | en |
| dc.subject | clusters | en |
| dc.subject | photoluminescence | en |
| dc.subject | microcrystals | en |
| dc.subject | spectroscopy | en |
| dc.title | Synthesis and characterization of ZnS nanosized semiconductor particles within mesoporous solids | en |
| heal.abstract | ZnS semiconductor quantum dots have been synthesized using a method involving melt exchange reaction inside the pores of MCM-41 and subsequent reaction with H2S. The ZnS quantum dots-MCM-41 composite, which has been studied with XRD, EDS, and BET techniques, is shown to have retained within the pores the formed quantum dots, with a size distribution exhibiting a maximum nanoparticle diameter of ca. 1.8 nm. The structure and the sorption properties of the ZnS/MCM-41 composite have been studied by means of X-ray diffraction, Fourier transform infrared spectroscopy, and surface area measurements. All experimental data reveal that all the final composite products, containing up to 9.3 wt % ZnS as verified by EDS analysis, keep the basic structural characteristics of MCM-41 materials, without significant reduction of their active surface areas. The quantum dot optical properties have been studied with UV-vis, photoluminescence, and photoluminescence excitation spectroscopies providing evidence for the low-dimensional character of the ZnS semiconductor particles. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1021/Jp064275y | - |
| heal.identifier.secondary | <Go to ISI>://000241905700011 | - |
| heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/jp064275y | - |
| heal.journalName | Journal of Physical Chemistry B | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2006 | - |
| heal.publisher | American Chemical Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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