Different nanostructured materials are having important roles in optoelectronics, gas sensing and photocatalytic applications due to their high surface to volume ratio. In this study, stannic oxide (SnO 2 ) nanostructures are prepared by hydrothermal method under optimal conditions at different temperatures (160, 180 and 200°C) using surfactant cetyltrimethyl ammonium bromide. X-ray diffraction studies reveal rutile tetragonal structures of SnO 2 nanostructures, showing that average crystallite size is less than 10 nm. Field emission scanning electron microscope imaging reveals the morphological analysis of SnO 2 nanostructures fabricated at different reaction temperatures (160, 180 and 200°C). Energy dispersive X-ray spectroscopy confirmed the elemental analysis of SnO 2 nanostructures. FTIR spectrum is recorded to confirm the presence of various functional and vibrational groups in the prepared SnO 2 nanostructures. Optical properties of these nanostructures are analysed by UV–vis absorption studies. Bandgap of prepared SnO 2 decreased with increasing reaction temperature. Two-probe setup along with Keithley source metre is used for analysis of electrical properties of SnO 2 nanostructures.

中文翻译：

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反应温度对氧化锡纳米结构结构和电子性能的影响

不同的纳米结构材料由于其高表面积与体积比，在光电子学、气体传感和光催化应用中发挥着重要作用。在这项研究中，使用表面活性剂十六烷基三甲基溴化铵在不同温度（160、180 和 200°C）的最佳条件下通过水热法制备氧化锡 (SnO 2 ) 纳米结构。X 射线衍射研究揭示了 SnO 2 纳米结构的金红石四方结构，表明平均微晶尺寸小于 10 nm。场发射扫描电子显微镜成像揭示了在不同反应温度（160、180 和 200°C）下制造的 SnO 2 纳米结构的形态分析。能量色散 X 射线光谱证实了 SnO 2 纳米结构的元素分析。记录FTIR 光谱以确认在制备的SnO 2 纳米结构中存在各种官能团和振动基团。这些纳米结构的光学特性通过紫外-可见吸收研究进行分析。制备的SnO 2 的带隙随着反应温度的升高而减小。两个探针设置与 Keithley 源计一起用于分析 SnO 2 纳米结构的电特性。