Highly transparent and conducting polycrystalline n-type SnO₂ thin films with prominent peak corresponding to (1 1 0) plane was deposited using the simple spray pyrolysis technique. A systematic investigation was carried out in order to understand the influence of deposition temperature on the structure, surface morphology, composition, linear and third-order nonlinear optical (NLO) properties, photoluminescence and electrical characteristic of the deposited films. The rise in the deposition temperature led to increase in crystallinity and transmittance of the films.

The films deposited at 450 °C showed the highest crystallite size, lesser dislocation density and fibrous surface morphology. The films deposited at 450 °C showed the highest transmittance of around 90% in the visible region and a direct energy band gap of 3.9 eV. Increase in the deposition temperature also reduced the film resistivity and enhanced the carrier concentration. The film deposited at 450 °C possessed the maximum carrier concentration of 2.04 × 10²⁰ cm⁻³ and minimum resistivity of 0.2483 Ω cm. It was also observed that the deposition temperature influenced on photoluminescent emission and the third-order nonlinear properties of the films. The photoluminescence spectra analysis of the deposited films indicated the existence of oxygen vacancies and other defects which led to nearly a white light emission. The film deposited at 450 °C showed a nonlinear absorption coefficient, nonlinear refractive index and susceptibility of 0.72 cm/W, 5.74 × 10⁻³ cm²/W and 7.29 × 10⁻³ esu, respectively. These films exhibited optical limiting behaviour and the obtained least limiting threshold was 1.1 kJ/cm². The results clearly showed the applicability of spray pyrolyzed SnO₂ thin films deposited at 450 °C in optoelectronic and nonlinear devices.

使用简单的喷雾热解技术沉积了高透明且导电的多晶n型SnO ₂薄膜，该薄膜的突出峰对应于（1 1 0）平面。为了了解沉积温度对沉积膜的结构，表面形态，组成，线性和三阶非线性光学（NLO）特性，光致发光和电学特性的影响，进行了系统的研究。沉积温度的升高导致膜的结晶度和透射率增加。

在450°C下沉积的薄膜显示出最大的微晶尺寸，较小的位错密度和纤维表面形态。在450°C下沉积的薄膜在可见光区域显示最高透射率，约为90％，直接能带隙为3.9 eV。沉积温度的升高也降低了膜的电阻率并提高了载流子浓度。在450°C沉积的薄膜具有的最大载流子浓度为2.04×10 ²⁰  cm ^-3最小电阻率为0.2483Ωcm。还观察到沉积温度影响光致发光发射和膜的三阶非线性性质。沉积膜的光致发光光谱分析表明氧空位和其他缺陷的存在，导致几乎发射白光。在450℃下沉积的膜显示出非线性吸收系数，非线性折射率和磁化率分别为0.72cm / W，5.74×10 ^-3  cm ² / W和7.29×10 ^-3  esu。这些膜表现出光学极限行为，并且获得的最小极限阈值为1.1kJ / cm ²。结果清楚地表明了喷雾热解SnO ₂的适用性 在光电和非线性器件中以450°C沉积的薄膜。