Alkylthiol-enabled Se powder dissolving for phosphine-free synthesis of highly emissive, large-sized and spherical Mn-doped ZnSeS nanocrystals
| Autor: | Bingsuo Zou, Bao Ke, Zhencheng Chen, Ruosheng Zeng, Yayun Shen, Xianwei Bai, Kun Bai, Rongkai Wang, Chunxiao Cai |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Chemical Engineering Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Nanocrystal chemistry Chemical engineering Quantum dot Selenide Reactivity (chemistry) Mn doped 0210 nano-technology Dissolution Selenium Phosphine |
| Zdroj: | RSC Advances. 7:44867-44873 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra06873e |
| Popis: | The enhanced dissolution of Se without organo-phosphines is a key issue in the synthesis of oil-soluble selenide nanocrystals. In this article, the dissolution of Se powder was greatly promoted by addition of 1-dodecanethiol at 200–220 °C. This Se precursor was of high reactivity and was suitable for the preparation of Se semiconductor nanocrystals. With this greener Se precursor, approximately spherical and large-sized Mn:ZnSeS quantum dots (QDs) could be prepared after multiple injections of the Zn precursor, and the size of Mn:ZnSeS can reach over 8.5 nm after the tenth injection of the Zn precursor. The preparation of this novel selenium precursor is simple and convenient, and provides a meaningful method for the synthesis and application of other selenium nanocrystals. |
| Databáze: | OpenAIRE |
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