A new chemical method is developed for the preparation of a unique one-dimensional (1D) Sn(IV) hydroxide nanofluid. The 1D-Sn(IV) hydroxide nanowires of ca. 600 nm in length and ca. 25 nm in width yield transparent glass type flakes when the nanofluid is dried in air. The stability of the system, keeping it safe from sedimentation even after a year, is believed to rely on its high zeta-potential of ca. 55 mV (± 2.5 mV). We extensively investigate the thermal conductivity and viscosity of the system in order to evaluate its nanofluidic merits, resulting in thermal conductivity exceeding 1 W m⁻¹ K⁻¹. The nanofluid is further investigated for nonlinear optics (NLO) applications, revealing a reversible switching from positive Z-scan (convex lens) to negative Z-scan (concave lens) of the nonlinear phase when the laser power is tuned from 500 to 1000 μW.

中文翻译：

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一维氢氧化锡（IV）纳米流体向非线性光学转换的方向

开发了一种新的化学方法来制备独特的一维（1D）锡（IV）氢氧化物纳米流体。大约1D-Sn（IV）氢氧化物纳米线。长度约为600 nm 当纳米流体在空气中干燥时，宽度为25 nm的透明片状透明玻璃片。该系统的稳定性（即使一年后仍可防止沉淀）被认为依赖于其高的zeta电位。55毫伏（±2.5毫伏）。为了评估其纳米流体性能，我们广泛研究了系统的导热系数和粘度，从而导致导热系数超过1 W m ^-1 K ^-1。进一步研究了纳米流体在非线性光学（NLO）应用中的作用，揭示了当激光功率从500调整到1000μW时，非线性相从正Z扫描（凸透镜）到负Z扫描（凹透镜）的可逆转换。。