Synthesis of High-Quality AgSbSe2 and AgBiSe2 Nanocrystals with Antimony and Bismuth Silylamide Reagents
| Autor: | Armen Shamirian, Adita Das, Bo Hsu, Preston T. Snee, Zheng Yang |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Trimethylsilyl Band gap General Chemical Engineering Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nanocrystalline material 0104 chemical sciences Nanomaterials Bismuth chemistry.chemical_compound chemistry Antimony Quantum dot Materials Chemistry 0210 nano-technology Pnictogen |
| Zdroj: | Chemistry of Materials. 29:4597-4602 |
| ISSN: | 1520-5002 0897-4756 |
| Popis: | Silver dimetal chalcogenides (Ag–V–VI2) are ternary semiconductors that have potential alternative energy applications due to their optimal band gaps and large extinction coefficients. The synthesis of these materials is challenging due to the lack of effective pnictide precursors. We report the use of tris[N,N-bis(trimethylsilyl)amido]antimony (Sb[N(SiMe3)2]3) and tris[N,N-bis(trimethylsilyl)amido]bismuth (Bi[(N(SiMe3)2]3) to synthesize nanocrystalline AgSbSe2 and AgBiSe2 quantum dots. The use of these reagents results in the creation of high quality nanomaterials with good crystallinity and narrow size distributions. Furthermore, electrical measurements on monolithic pellets of processed AgSbSe2 and AgBiSe2 nanomaterials demonstrate linear current–voltage behavior at room temperature, which indicates potential for use in electrical applications. |
| Databáze: | OpenAIRE |
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