Johny Jacob, Sepulveda-Guzman Selene, Krishnan Bindu, Avellaneda David A, Aguilar Martinez Josue A, Shaji Sadasivan
Facultad de Ingeniería Mecánica y Eléctrica, Universidad Autónoma de Nuevo León, Av. Universidad s/n, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, 66455, México.
CIIA, Universidad Autónoma de Nuevo León, Apodaca, Nuevo León, México.
Chemphyschem. 2017 May 5;18(9):1061-1068. doi: 10.1002/cphc.201601186. Epub 2017 Jan 3.
Tin sulfide (SnS) nanoparticles were synthesized by pulsed laser ablation in liquid (PLAL) technique using an Nd:YAG laser operated at 532 nm. SnS thin films were deposited by spraying the colloidal suspension onto the heated substrates. The influence of different liquid media (dimethyl formamide and isopropyl alcohol) on the thin film properties were studied. Morphology, crystalline structure, and chemical composition of the nanoparticles were identified using transmission electron microscopy with energy dispersive X-ray analysis. The crystalline structure of the thin films was analyzed by using grazing incidence X-ray diffraction, and the chemical states by X-ray photoelectron spectroscopy. Scanning electron microscopy was employed for the morphological analysis of the thin films. Annealing the films at 380 °C improved the crystallinity of the films exhibiting a layered morphology, which may be useful in optoelectronic and sensing applications. Cyclic voltammetry studies showed that the films have good electrochemical properties.
采用波长为532 nm的Nd:YAG激光器，通过液体中脉冲激光烧蚀（PLAL）技术合成了硫化锡（SnS）纳米颗粒。通过将胶体悬浮液喷涂到加热的基板上沉积SnS薄膜。研究了不同液体介质（二甲基甲酰胺和异丙醇）对薄膜性能的影响。使用带有能量色散X射线分析的透射电子显微镜确定纳米颗粒的形态、晶体结构和化学成分。通过掠入射X射线衍射分析薄膜的晶体结构，通过X射线光电子能谱分析化学状态。采用扫描电子显微镜对薄膜进行形态分析。在380 °C下对薄膜进行退火处理，改善了呈现层状形态的薄膜的结晶度，这在光电和传感应用中可能是有用的。循环伏安法研究表明，这些薄膜具有良好的电化学性能。
