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Synthesis and Optical Characterization of SrHfO3 Nano-Crystals Synthesized by Using the Combustion Method
- Authors
- Kim, D. H.; Lee, D. J.; Park, J. W.; Lee, Y. S.
- Issue Date
- Mar-2013
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- SrHfO3; Nano-Crystals; Combustion Method; Grain Size; Blue Emission
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.3, pp.1845 - 1847
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 13
- Number
- 3
- Start Page
- 1845
- End Page
- 1847
- ISSN
- 1533-4880
- Abstract
- We synthesized SrHfO3 nano-crystals (NCs) by using the combustion method, and investigated their emission property using 325 nm photo-excitation. The as-grown SrHfO3 NCs were annealed at different temperatures from 700 degrees C to 1450 degrees C. The X-ray diffraction analysis revealed that all the samples are of a single phase, and the grain size increases with the higher temperature annealing. Interestingly, it is found that in contrast to the bulk case, the SrHfO3 NCs show a strong blue emission even at room temperature. The strong dependence of the visible emission on annealing temperatures and grain sizes indicated that the effects of grain size and oxygen vacancies may play a role in forming the observed visible emission band for SrHfO3 NCs. We also compare our findings with the case of similar material, SrZrO3.
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Related Researcher
- Lee, Yun Sang
- College of Natural Sciences (Department of Physics)