Highlights
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- In-doped SnO2 samples show smaller crystallinity with crystallite size: ∼7–9 nm.
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- EDX analyses confirm the incorporation of indium ions in the SnO2 lattice.
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- Raman spectra are consistent with the results of XRD and SAED pattern.
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- Alcohol response has been found to increase with the indium dopant concentration.
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- 3 at% In-doped sample exhibits maximum response (96.5%) to propan-2-ol at 250 °C.
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