Formation of silver metal nanoclusters in MgO by MeV Ag implantation
- Alabama A and M Univ., Normal, AL (United States). Center for Irradiation of Materials
- Oak Ridge National Lab., TN (United States). Solid State Div.
Nanoclusters of Ag metal in MgO(100) single crystals was formed by implantation of 1.5 MeV silver ions at fluences of 6 {times} 10{sup 16} ion/cm{sup 2} and at 1.2 {times} 10{sup 17} ion/cm{sup 2}, and subsequent annealing at temperatures between 600 C to 1,100 C. The formation of the Ag metallic clusters was confirmed using optical absorption spectrophotometry by the absorption band at 430 nm. This is in agreement with the theoretical prediction using Mie`s theory, with calculated average nanocluster size about 3 nm. Using ion channeling the authors confirmed that the orientation of the Ag nanoclusters was in the same direction of the host crystal. Using Z-scan they found the nonlinear refractive index of Ag implanted MgO to be 4.9 {times} 10{sup {minus}8} esu.
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 549790
- Report Number(s):
- CONF-961202--; ISBN 1-55899-342-8
- Country of Publication:
- United States
- Language:
- English
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