Tin Sulfide (SnS) Films Deposited by an Electric Field-Assisted Continuous Spray Pyrolysis Technique with Application as Counter Electrodes in Dye-Sensitized Solar Cells.
Tin Sulfide (SnS) Films Deposited by an Electric Field-Assisted Continuous Spray Pyrolysis Technique with Application as Counter Electrodes in Dye-Sensitized Solar Cells.
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DOI：
10.1021/acsomega.2c03454
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发表时间：
2022-11-08
期刊：
影响因子：
4.1
通讯作者：
Dutta, Viresh
中科院分区：
文献类型：
--
作者：
Mohammad, Tauheed;Alam, Firoz;Sadhanala, Aditya;Upadhyaya, Hari M.;Dutta, Viresh
采用连续喷雾热解技术沉积硫化锡（SnS）纳米结构薄膜，并在喷嘴处施加电场，以影响雾化和后续薄膜沉积。在没有电场的情况下，X射线衍射图显示了具有沿沿着（040）面的晶体学优选取向的SnS的正交相。的电场的应用结果在显着改善的形态和减少表面粗糙度（28 nm从37 nm）。的直接光学带隙的薄膜沉积和没有电场估计为1.5和1.7 eV，分别。光热偏转光谱的研究表明，较低的能量紊乱（没有Urbach尾），这表明在电场下沉积的SnS膜的退火效应。膜性质的改善反映在使用SnS膜作为对电极制造的染料敏化太阳能电池的功率转换效率（PCE）的预期改善中。PCE的增强从2.07%的薄膜沉积没有电场的2.89%的薄膜沉积与电场显示的电场中的作用，在改进的SnS膜的制造。
The deposition of tin sulfide (SnS) nanostructured films using a continuous spray pyrolysis technique is reported with an electric field present at the nozzle for influencing the atomization and the subsequent film deposition. In the absence of the electric field, the X-ray diffraction pattern shows the orthorhombic phase of SnS with a crystallographic preferred orientation along the (040) plane. The application of the electric field results in significant improvement in the morphology and a reduction in surface roughness (28 nm from 37 nm). The direct optical band gap of the films deposited with and without the electric field is estimated to be 1.5 and 1.7 eV, respectively. The photothermal deflection spectroscopy studies show a lower energetic disorder (no Urbach tail), which indicates an annealing effect in the SnS films deposited under the electric field. The improvement in the film properties is reflected in the expected improvement in the power conversion efficiency (PCE) of dye-sensitized solar cells fabricated using the SnS film as a counter electrode. An enhancement of PCE from 2.07% for the film deposited without the electric field to 2.89% for the film deposited with the electric field shows the role of the electric field in the fabrication of improved SnS films.
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