Effects of Doping on the Surface Energies of Nanocrystals and Evidence from Studies at High Pressure

Journal Article · Sat Dec 31 04:00:00 EST 2011 · Solid State Communications

DOI:https://doi.org/10.1016/j.ssc.2011.02.004· OSTI ID:1042081

Zong, Z; Ma, Y; Hu, T; Cui, G; Cui, Q; Zhang, m; Zou, G

Zn{sub 1-X}Mn{sub X}S (X = 0.85% and 1.26%) nanoparticles have been synthesized using a specially designed equipment and we have studied the influence of doping Mn{sup 2+} on the surface energy of ZnS. The high pressure behaviors of ZnS nanocrystals with different dopant contents have been investigated using angle-dispersive synchrotron X-ray powder diffraction up to 45.1 GPa. Theoretical calculations show that doping with Mn{sup 2+} increases the surface energy of the nanocrystals. The theoretical result has been further corroborated by our experimental observation of an increase in the phase transition pressure of Mn{sup 2+} doped ZnS nanocrystals in diamond-anvil-cell studies.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1042081
• Report Number(s): BNL--97759-2012-JA
• Journal Information: Solid State Communications, Journal Name: Solid State Communications Journal Issue: 8 Vol. 151; ISSN 0038-1098; ISSN SSCOA4
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
DIFFRACTION
SURFACE ENERGY
SYNCHROTRONS
SYNTHESIS