Effect of Li Doping on Structural, Optical, and Optoelectrical Characteristics of ZnSnO3 Thin Films Prepared by Nebulizer Spray Pyrolysis

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Manal M. Alkhamisi
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Abstract

In this work, ZnSnO3 (ZTO3) and Li-doped ZTO3 thin films were synthesized on glass slides by a cost-effective nebulizer spray pyrolysis procedure. The X-ray diffraction analysis revealed that the ZTO3 and Li-doped ZTO3 thin films possessed a rhombohedral structure. The structural indices (grain size, dislocation density, lattice strain) of the ZTO3 and Li-doped ZTO3 thin films were computed. The morphology characteristics of the ZTO3 and Li-doped ZTO3 thin films were observed by field emission scanning electron microscopy. The inspected films display uniform and homogeneous surfaces. The optical transmittance, T, and reflectance, R, of the ZTO3 and Li-doped ZTO3 thin films were recorded using a double-beam spectrophotometer to investigate the optical characteristics of these layers. The refractive index of the ZTO3 and Li-doped ZTO3 thin films was enhanced via the Li content increase. Moreover, Tauc’s plots demonstrated that the energy gap of the ZTO3 and Li-doped ZTO3 thin films was reduced from 3.85 eV to 3.08 eV by boosting the Li doping content. Moreover, the increase in Li content produces an enhancement in the optoelectrical indices (optical resistivity, optical carrier concentration, optical mobility, plasms frequency, and optical conductivity) of the ZTO3 and Li-doped ZTO3 thin films. The nonlinear optical indices of the ZTO3 and Li-doped ZTO3 thin films were deduced, and it was noted that Li content boosted the nonlinear optical indices of these layers. All the ZTO3 and Li-doped ZTO3 thin films displayed n-type semiconducting properties by the hot probe equipment.
掺杂锂对雾化喷射热解法制备的 ZnSnO3 薄膜的结构、光学和光电特性的影响
本研究采用经济有效的雾化喷射热解工艺,在玻璃载玻片上合成了 ZnSnO3(ZTO3)和掺杂锂的 ZTO3 薄膜。X 射线衍射分析表明,ZTO3 和掺杂锂的 ZTO3 薄膜具有斜方体结构。计算了 ZTO3 和掺锂 ZTO3 薄膜的结构指数(晶粒尺寸、位错密度、晶格应变)。用场发射扫描电子显微镜观察了 ZTO3 和掺锂 ZTO3 薄膜的形态特征。薄膜表面均匀一致。使用双光束分光光度计记录了 ZTO3 和掺锂 ZTO3 薄膜的透光率 T 和反射率 R,以研究这些薄膜层的光学特性。ZTO3 和掺锂 ZTO3 薄膜的折射率随着锂含量的增加而提高。此外,陶氏图表明,通过提高锂的掺杂量,ZTO3 和锂掺杂 ZTO3 薄膜的能隙从 3.85 eV 降至 3.08 eV。此外,锂含量的增加还提高了 ZTO3 和掺锂 ZTO3 薄膜的光电指数(光电阻率、光载流子浓度、光迁移率、等离子体频率和光导率)。推导出了 ZTO3 和掺锂 ZTO3 薄膜的非线性光学指数,发现锂含量提高了这些薄膜层的非线性光学指数。通过热探针设备,所有 ZTO3 和掺锂 ZTO3 薄膜都显示出 n 型半导体特性。
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来源期刊
ECS Journal of Solid State Science and Technology
ECS Journal of Solid State Science and Technology MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED
CiteScore
4.50
自引率
13.60%
发文量
455
期刊介绍: The ECS Journal of Solid State Science and Technology (JSS) was launched in 2012, and publishes outstanding research covering fundamental and applied areas of solid state science and technology, including experimental and theoretical aspects of the chemistry and physics of materials and devices. JSS has five topical interest areas: carbon nanostructures and devices dielectric science and materials electronic materials and processing electronic and photonic devices and systems luminescence and display materials, devices and processing.
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