| Název: | Synthesis, Crystal Structure, and Optical Gap of Two-Dimensional Halide Solid Solutions CsPb2 (Cl1-xBrx)(5) |
| Autoři: | Chen, Yibao Molokeev, Maxim S. Atuchin, Victor V. Al-Jaary, Ali H. Reshak Auluck, Sushil Alahmed, Zeyad A. Xia, Zhiguo |
| Citace zdrojového dokumentu: | CHEN, Y., MOLOKEEV, M. S., ATUCHIN, V. V., AL-JAARY, A. H. R., AULUCK, S., ALAHMED, Z. A., XIA, Z. Synthesis, Crystal Structure, and Optical Gap of Two-Dimensional Halide Solid Solutions CsPb2 (Cl1-xBrx)(5). INORGANIC CHEMISTRY, 2018, roč. 57, č. 15, s. 9531-9537. ISSN: 0020-1669 |
| Datum vydání: | 2018 |
| Nakladatel: | American Chemical Society |
| Typ dokumentu: | článek article |
| URI: | 2-s2.0-85051193522 http://hdl.handle.net/11025/31195 |
| ISSN: | 0020-1669 |
| Klíčová slova v dalším jazyce: | Light-emitting-diodes;surface chemical-stability;electronic-structure;iluminescence properties;vibrational properties;thermal-expansion;single-crystals;anion-exchange;nanoplatelets;parameters |
| Abstrakt v dalším jazyce: | Exploring new perovskite-related solid-state materials and the investigating composition-dependent structural and physical properties are highly important for advanced functional material development. Herein, we present the successful hydrothermal synthesis of tetragonal CsPb<INF>2</INF>Cl<INF>5</INF> and the anion-exchange phase formation of CsPb<INF>2</INF>(Cl<INF>1-x</INF>Br<INF>x</INF>)<INF>5</INF> (x = 0-1) solid solutions. The CsPb<INF>2</INF>(Cl<INF></INF><INF>1-x</INF>Br<INF>x</INF>)<INF>5</INF> crystal structures, which crystallize in the tetragonal system, space group 14/mcm, with parameters similar to those of CsPb<INF>2</INF>Cl<INF>5</INF>, have been determined by Rietveld analysis. The optical band gap was obtained by UV-vis spectroscopy, and the band structure was further calculated by the full-potential method within the generalized gradient approximation. It was revealed that the band gap in CsPb<INF>2</INF>(Cl<INF>1- x</INF>Br<INF>x</INF>)<INF>5</INF> solid solutions can be tuned over the range of 4.5-3.8 eV by anion substitution. |
| Práva: | Plný text není přístupný. © American Chemical Society |
| Vyskytuje se v kolekcích: | Články / Articles (CTM) OBD |
Soubory připojené k záznamu:
| Soubor | Velikost | Formát | |
|---|---|---|---|
| CsPb2_scan.pdf | 3,63 MB | Adobe PDF | Zobrazit/otevřít Vyžádat kopii |
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