Here we first studied the effect of different stannous chloride (SnCl₂·2H₂O) precursor volumes (20, 50 and 80 ml) on physical properties of pure SnO₂ thin films deposited on glass substrates by spray pyrolysis technique. It is found that all thin layers have a tetragonal rutile structure; and the one with the lowest spray volume has the highest figure of merit (Ф) among other samples. We then followed this sample deposition recipe and studied the effect of F-doping with different NH₄F weight percentages (3, 5 and 10 wt%). It was revealed that sample with 10 wt% doping concentration has the highest Ф-value (13.1 × 10⁻³ Ω⁻¹) ever reported using economical stannous chloride precursor. Further investigations showed this thin layer also has an impressive calculated IR reflectivity of ~83%. These characteristics are useful in transparent heat-reflecting films and thin film solar cell applications.

在这里，我们首先研究了不同体积的氯化亚锡（SnCl ₂ ·2H ₂ O）（20、50和80 ml）对通过喷雾热解技术沉积在玻璃基板上的纯SnO ₂薄膜的物理性能的影响。发现所有薄层均具有四方金红石结构。喷雾量最低的样品在其他样品中具有最高的品质因数（Ф）。然后，我们遵循该样品沉积配方，研究了不同NH ₄ F重量百分比（3、5和10 wt％）的F掺杂效果。据透露，用10重量％的掺杂浓度的样品具有最高的Ф-值（13.1×10 ^-3  Ω ^-1）曾经报道过使用经济的氯化亚锡前体。进一步的研究表明，该薄层的红外反射率也达到了令人印象深刻的83％。这些特性可用于透明的热反射膜和薄膜太阳能电池应用中。