Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers
A set of polymer-embedded, two-colored nanocomposites were prepared where the co-existing emission peaks (~578 nm and ~650 nm) had different ratios at their emission thresholds. The nanocomposite samples were simultaneously excited by a 405 nm laser, and the growth of photoluminescence intensities w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/15/1/111 |
| _version_ | 1797342968763383808 |
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| author | Mithun Bhowmick James Christensen Richard Adjorlolo Bruno Ullrich |
| author_facet | Mithun Bhowmick James Christensen Richard Adjorlolo Bruno Ullrich |
| author_sort | Mithun Bhowmick |
| collection | DOAJ |
| description | A set of polymer-embedded, two-colored nanocomposites were prepared where the co-existing emission peaks (~578 nm and ~650 nm) had different ratios at their emission thresholds. The nanocomposite samples were simultaneously excited by a 405 nm laser, and the growth of photoluminescence intensities was studied as a function of excitation intensity. The two peaks showed different growth evolution mechanisms. The factors impacting this difference could be (1) energy transfer between the two sized nanoparticles; (2) relaxation mechanism of smaller nanoparticles; and (3) material properties of the polymer. |
| first_indexed | 2024-03-08T10:40:53Z |
| format | Article |
| id | doaj.art-f3dce3ebdf9949e28e6b8732503b6f8d |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-08T10:40:53Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-f3dce3ebdf9949e28e6b8732503b6f8d2024-01-26T17:45:05ZengMDPI AGMicromachines2072-666X2024-01-0115111110.3390/mi15010111Photoluminescence from Two-Phase Nanocomposites Embedded in PolymersMithun Bhowmick0James Christensen1Richard Adjorlolo2Bruno Ullrich3Mathematical and Physical Sciences, Miami University Regionals, Middletown, OH 45042, USAConstruction Engineering Research Laboratory, United States Army Corps of Engineers, Champaign, IL 61822, USAMathematical and Physical Sciences, Miami University Regionals, Middletown, OH 45042, USAUllrich Photonics LLC, Manistique, MI 49854, USAA set of polymer-embedded, two-colored nanocomposites were prepared where the co-existing emission peaks (~578 nm and ~650 nm) had different ratios at their emission thresholds. The nanocomposite samples were simultaneously excited by a 405 nm laser, and the growth of photoluminescence intensities was studied as a function of excitation intensity. The two peaks showed different growth evolution mechanisms. The factors impacting this difference could be (1) energy transfer between the two sized nanoparticles; (2) relaxation mechanism of smaller nanoparticles; and (3) material properties of the polymer.https://www.mdpi.com/2072-666X/15/1/111quantum dotscompositesCdSephotoluminescencePVAnanoparticles |
| spellingShingle | Mithun Bhowmick James Christensen Richard Adjorlolo Bruno Ullrich Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers Micromachines quantum dots composites CdSe photoluminescence PVA nanoparticles |
| title | Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers |
| title_full | Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers |
| title_fullStr | Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers |
| title_full_unstemmed | Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers |
| title_short | Photoluminescence from Two-Phase Nanocomposites Embedded in Polymers |
| title_sort | photoluminescence from two phase nanocomposites embedded in polymers |
| topic | quantum dots composites CdSe photoluminescence PVA nanoparticles |
| url | https://www.mdpi.com/2072-666X/15/1/111 |
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