Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films
Novel single-source precursors based on sodium and lanthanide pentafluoropropionates have been developed for chemical solution deposition of NaLnF<sub>4</sub> thin films (Ln = Y, Yb, Er, Tm). A series of [Ln<sub>2</sub>(pfp)<sub>6</sub>Q<sub>n</sub>] (...
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MDPI AG
2022-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/3/488 |
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| author | Artem Shevchenko Andrei Anosov Daria Blinnikova Dimitry Grebenyuk Dmitry Tsymbarenko |
| author_facet | Artem Shevchenko Andrei Anosov Daria Blinnikova Dimitry Grebenyuk Dmitry Tsymbarenko |
| author_sort | Artem Shevchenko |
| collection | DOAJ |
| description | Novel single-source precursors based on sodium and lanthanide pentafluoropropionates have been developed for chemical solution deposition of NaLnF<sub>4</sub> thin films (Ln = Y, Yb, Er, Tm). A series of [Ln<sub>2</sub>(pfp)<sub>6</sub>Q<sub>n</sub>] (Q = H<sub>2</sub>O, diglyme) and mixed-metal NaLn(pfp)<sub>4</sub>Q<sub>n</sub> were synthesized and characterized by X-ray diffraction (XRD) and thermogravimetric analysis (TG-DTA). Thermal decomposition of individual Na(pfp) and Ln(pfp)<sub>3</sub> occurs at different temperatures while single-source NaLn(pfp)<sub>4</sub> decomposes with the transformation to NaLnF<sub>4</sub> in a single stage at 280 °C. Further crystallization of NaLnF<sub>4</sub> was studied by variable-temperature powder XRD, which shows two phase transformations from cubic NaLnF<sub>4</sub> to hexagonal NaLnF<sub>4</sub> at 310 °C and back to a high-temperature cubic phase at 560 °C. The thin films of NaY<sub>0.78</sub>Yb<sub>0.2</sub>Er<sub>0.02</sub>F<sub>4</sub> prepared by the dip-coating technique on Al<sub>2</sub>O<sub>3</sub> substrates showed intense up-converting luminescence in green and blue regions under 980 nm excitation. |
| first_indexed | 2024-03-09T13:19:30Z |
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| id | doaj.art-7c61a1b48e824d46b744a3a4e03060d9 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T13:19:30Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-7c61a1b48e824d46b744a3a4e03060d92023-11-30T21:32:02ZengMDPI AGMetals2075-47012022-03-0112348810.3390/met12030488Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin FilmsArtem Shevchenko0Andrei Anosov1Daria Blinnikova2Dimitry Grebenyuk3Dmitry Tsymbarenko4Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaNovel single-source precursors based on sodium and lanthanide pentafluoropropionates have been developed for chemical solution deposition of NaLnF<sub>4</sub> thin films (Ln = Y, Yb, Er, Tm). A series of [Ln<sub>2</sub>(pfp)<sub>6</sub>Q<sub>n</sub>] (Q = H<sub>2</sub>O, diglyme) and mixed-metal NaLn(pfp)<sub>4</sub>Q<sub>n</sub> were synthesized and characterized by X-ray diffraction (XRD) and thermogravimetric analysis (TG-DTA). Thermal decomposition of individual Na(pfp) and Ln(pfp)<sub>3</sub> occurs at different temperatures while single-source NaLn(pfp)<sub>4</sub> decomposes with the transformation to NaLnF<sub>4</sub> in a single stage at 280 °C. Further crystallization of NaLnF<sub>4</sub> was studied by variable-temperature powder XRD, which shows two phase transformations from cubic NaLnF<sub>4</sub> to hexagonal NaLnF<sub>4</sub> at 310 °C and back to a high-temperature cubic phase at 560 °C. The thin films of NaY<sub>0.78</sub>Yb<sub>0.2</sub>Er<sub>0.02</sub>F<sub>4</sub> prepared by the dip-coating technique on Al<sub>2</sub>O<sub>3</sub> substrates showed intense up-converting luminescence in green and blue regions under 980 nm excitation.https://www.mdpi.com/2075-4701/12/3/488single-source precursorup-conversionthin filmsMOCSDlanthanidesperfluorocarboxylates |
| spellingShingle | Artem Shevchenko Andrei Anosov Daria Blinnikova Dimitry Grebenyuk Dmitry Tsymbarenko Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films Metals single-source precursor up-conversion thin films MOCSD lanthanides perfluorocarboxylates |
| title | Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films |
| title_full | Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films |
| title_fullStr | Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films |
| title_full_unstemmed | Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films |
| title_short | Single-Source Precursors for Chemical Solution Deposition of Up-Converting NaLnF<sub>4</sub> Thin Films |
| title_sort | single source precursors for chemical solution deposition of up converting nalnf sub 4 sub thin films |
| topic | single-source precursor up-conversion thin films MOCSD lanthanides perfluorocarboxylates |
| url | https://www.mdpi.com/2075-4701/12/3/488 |
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