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首页> 外文期刊>Journal of Science of the University of Kelaniya Sri Lanka >ZnS assisted Zn doping in CdZnS electrodeposition
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ZnS assisted Zn doping in CdZnS electrodeposition

机译：Zns辅助Zn掺杂Cdzns电沉积

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Many reports have been published elsewhere on making thin films of cadmium zinc sulphide (CdZnS) using different techniques. This article summarizes a method developed to form CdZnS by incorporating electrodeposited Cd and S atoms simultaneously to the chemically formed ZnS material in the electrolytic bath at the conducting surface of fluorine doped tin oxide (FTO) coated glass substrate. Moreover, the mechanism of formation of CdZnS is proposed as a solid state reaction between electrodeposited Cd and S atoms on the glass/FTO substrate with adsorbed ZnS particles from the electrolytic bath. The precursors used for Cd, S and ZnS in the electrolyte were aqueous solutions of CdClsub2/sub, ZnClsub2/sub and Nasub2/subSsub2/subOsub3/sub. Two different methods were tested to form ZnS within the electrolyte bath where one forming ZnS in the bath at the beginning of electrodeposition of Cd and S and in the other one, ZnS is formed before the electrodeposition of Cd and S. The results of the band gap measurements show an undulation which is closer to the band gap energy of CdS indicating probable codeposition of one or more materials such as CdS, (2.42 eV), ZnS (3.7 eV), CdO (2.2 eV), and ZnO (3.2 eV) along with CdZnS. The Tauc plot resulted by the material produced in method 1 has shown an undulation at the onset of Tauc plot which is near the band gap energy of CdS indicating the codeposition of CdS with CdZnS, but the Tauc plot of CdZnS electrodeposited from method 2 has shown clear separation in band gaps from 2.44 – 2.52 eV, when the annealing temperature, the Znsup2+/sup ion concentration in bath and the electrodeposition pH were varied. These thin films were also characterized by photoelectrochemical (PEC) cell analysis, x-ray diffraction (XRD), energy dispersive x-ray analysis (EDXA) and scanning electron microscopy (SEM) techniques.
机译：许多报告已在其他地方发表在其他地方使用不同的技术制作硫化锌（CDZNS）的薄膜。本文总结了通过将电沉积的CD和S原子同时在氟掺杂的氧化锡（FTO）涂覆的玻璃基板的电解浴中同时将电沉积CD和S原子与化学形成的ZnS材料一起结合到化学形成的ZnS材料中，概述了一种方法。此外，CDZN的形成机制是在玻璃/ FTO基材上的电沉积CD和S原子之间的固态反应，其中来自电解浴的吸附ZnS颗粒。用于电解质中的CD，S和ZnS的前体是CDCl 2 ，ZnCl 2 和Na 2 s 2的水溶液 O 3 。测试了两种不同的方法以在电解质浴中形成ZnS，其中在CD和S的电沉积的开始时在浴中形成ZnS，并且在CD和S的电沉积之前形成ZnS。带的结果间隙测量显示出的下降，其越接近Cds的带隙能量，其表明可能的一种或多种材料（如CD），（2.42eV），ZnS（3.7eV），CDO（2.2eV）和ZnO（3.2eV）的负荷和CDZN一起。由方法1中生产的材料产生的焦图已经显示了在图解的发作下的下降，这靠近CD的CDS的带隙能量，这表明CDS与CDZNS的CDS的致沉积，但是从方法2中电沉积的CDZNS的绘制图已经显示出在4.44-2.52eV中清除带间隙中的分离，当退火温度时，Zn 2 + 离子浓度和电沉积pH值变化。这些薄膜的特征在于光电化学（PEC）细胞分析，X射线衍射（XRD），能量分散X射线分析（EDXA）和扫描电子显微镜（SEM）技术。

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