摘要
Considering the large lattice mismatch induced interface strain between nonepitaxial grown monocrystalline semiconductor shell and metal core, we studied the solid-state phase transformation of such nonepitaxial grown Au@CdS core/shell NCs under high pressure in this paper. Consistent with HRTEM characterizations, the high resolution Raman spectra and synchrotron angle-dispersive X-ray diffraction (ADXRD) spectra evolution were utilized to investigate the hydrostatic pressure (0-24 GPa) induced gradual phase transformation. Due to the strong lattice interactions between Au core and CdS shell, the different behavior and improved stability under high pressure appeared compared to single quantum dots (QDs).
源语言 | 英语 |
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页(从-至) | 6544-6549 |
页数 | 6 |
期刊 | Journal of Physical Chemistry Letters |
卷 | 9 |
期 | 22 |
DOI | |
出版状态 | 已出版 - 15 11月 2018 |