Abstract
Here we report for the first time, a detailed synthesis mechanism of GdCrO3 nanoparticles using a surfactant-less hydrothermal method. We also report a detailed study of their structural and optical properties. The selected area electron diffraction and powder X-ray diffraction studies of GdCrO3 nanoparticles show pure phase and excellent crystallinity with average particle size around 50–60 nm. The structural analysis indicates a distorted perovskite crystal structure with lattice parameter values of a = 5.3099 ± 0.0022, b = 5.51793 ± 0.00226, and c = 7.60426 ± 0.00315 Å. For the first time, we report the room temperature UV–vis, photoluminescence, FTIR, and X-ray photoelectron spectroscopy results and their detailed analysis for GdCrO3. These results provide optical signatures of the formation of GdCrO3 where both Gd3+ and Cr3+ play dominant role in different frequency regions.
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Acknowledgments
P. Poddar acknowledges the financial support from the “Department of Science and Technology, India (DST)”, through Grant No. SR/S5/NM-104/2006 under the “Nano Mission” program and ARMREB/MAA/2008/104 by ARMREB, DRDO, India. A. Jaiswal acknowledges the support from the Council of Scientific and Industrial Research, India (CSIR), for providing the Senior Research Fellowship. R. Das acknowledges funding for his project assistantship from DST and ARMREB, DRDO.
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Jaiswal, A., Das, R., Adyanthaya, S. et al. Synthesis and optical studies of GdCrO3 nanoparticles. J Nanopart Res 13, 1019–1027 (2011). https://doi.org/10.1007/s11051-010-0090-4
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DOI: https://doi.org/10.1007/s11051-010-0090-4