Abstract
The temperature influenced photoluminescence property of any material is an efficient way to analyze the thermal transport behavior of the charge carriers within that material. The measurement of photoluminescence intensity is one of the methods to predict the excitation of charge carrier over the metastable states within the materials. In this paper, we explained the temperature variable photoluminescence of tin oxide (SnO2) nanostructures fabricated via a hydrothermal approach. The optics and photonic-based properties of the fabricated SnO2 nanostructures was studied using absorption spectra by which its bandgap was measured. At the same time, by careful evaluation of the XRD peaks, the presence of SnO2 in the nanostructures was confirmed. Using scanning electron microscopy (SEM), it was confirmed that the synthesized SnO2 nanoflower structures was in the size range of 200–500 nm. The reported results suggest that the trapping of the electrons over the defects level at higher temperature regime were measured by temperature variable photoluminescence intensity. With the findings of the peaks in the photoluminescence spectra, we have discussed various types of defects found within the fabricated SnO2 nanostructures and hence provide the mechanism of the excitation of charge carriers from the valence band to the conduction band of the SnO2 nanostructures. Using the temperature variable photoluminescence property of the synthesized SnO2 nanostructures, the possible device applications was employed via Commission International de I'Eclairage (CIE) diagram which is very useful method for fabrication and designing of light-emitting diodes (LEDs).
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Acknowledgements
Dr. Rana Tabassum is grateful to the Department of Science and Technology (DST) for INSPIRE Faculty scheme and Science and Engineering Research Board for SERB-Research Scientist fellowships and Research grants.
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Azharuddin, M., Tabassum, R. (2023). Employing Temperature-Dependent Photoluminescence of Tin Oxide (SnO2) Nanostructures for Designing of Efficient Light-Emitting Diodes. In: Khan, Z.H., Jackson, M., Salah, N.A. (eds) Recent Advances in Nanotechnology. ICNOC 2022. Springer Proceedings in Materials, vol 28. Springer, Singapore. https://doi.org/10.1007/978-981-99-4685-3_60
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DOI: https://doi.org/10.1007/978-981-99-4685-3_60
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