Compressibility of zinc sulfide nanoparticles
- Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Department of Earth and Planetary Sciences, University of California-Berkeley, Berkeley, California 94720 (United States)
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China (China)
We describe a high-pressure x-ray diffraction (XRD) study of the compressibility of several samples of ZnS nanoparticles. The nanoparticles were synthesized with a range of sizes and surface chemical treatments in order to identify the factors that determine nanoparticle compressibility. Refinement of the XRD data revealed that all ZnS nanoparticles in the nominally cubic (sphalerite) phase exhibited a previously unobserved structural distortion under ambient conditions that exhibited, in addition, a dependence on pressure. Our results show that the compressibility of ZnS nanoparticles increases substantially as the particle size decreases, and we propose an interpretation based upon the available mechanisms of structural compliance in nanoscale vs bulk materials.
- OSTI ID:
- 20853668
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 74, Issue 11; Other Information: DOI: 10.1103/PhysRevB.74.115405; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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