溶液 pH 值对含有酒石酸的化学沉积硫化铁的影响

Q4 Multidisciplinary

ASM Science Journal Pub Date : 2024-01-05 DOI:10.32802/asmscj.2023.1432

Muhammad Hadif Amri, Adrian Afzal Ariff, A. Supee, M. Z. Mohd Yusop

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引用次数: 0

摘要

化学沉积法（CBD）包含硫代硫酸钠（Na2S2O3）、七水合硫酸铁（FeSO4.7H2O）和作为络合剂的 L(+)- 酒石酸（C4H6O6），用于沉积氧化铁（FeSxOy）薄膜。研究了不同溶液 pH 值（5.0-9.0）对薄膜特性的影响。从扫描电子显微镜（SEM）截面图像分析的薄膜厚度显示，薄膜厚度随 pH 值的增加而增加。X 射线衍射 (XRD) 图样和热探针法显示，所有沉积的薄膜都是晶体状的，并且由于含氧量高（约 72-82%）而具有 n 型半导体特性。pH 值大于 7.0 的薄膜结晶尺寸较大，并出现了额外的鹅铁矿和赤铁矿峰，而 pH 值为 5.0 的薄膜则具有更好的薄膜均匀性和晶粒分布，并且在透射率测量中具有清晰的吸收边缘。

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Effects of Solution pH on Chemical Bath Deposited Iron-Sulfide-Oxide with Tartaric Acid Presence

A chemical bath deposition (CBD) contained sodium thiosulfate (Na2S2O3), iron (II) sulfate heptahydrate (FeSO4.7H2O), and L(+)-tartaric acid (C4H6O6) as the complexing agent has been used to deposit the iron-sulfide-oxide (FeSxOy) films. The effects of different solution pH (5.0-9.0) on film properties were investigated. The thicknesses of the film analysed from the cross-sectional images of Scanning Electron Microscopy (SEM) showed the thickness of the film is increasing with increasing pH. The X-Ray Diffraction (XRD) pattern and the hot probe method revealed that all the deposited films are crystalline, and possess n-type semiconductor behaviour due to high oxygen content (around 72-82%). Larger crystallite sizes with extra peaks of goethite and hematite were present for the films with pH > 7.0, while, better film uniformity and grains distribution, as well as clear absorption edge in transmittance measurement, were obtained for the film with pH 5.0.

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来源期刊

ASM Science Journal Multidisciplinary-Multidisciplinary

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： The ASM Science Journal publishes advancements in the broad fields of medical, engineering, earth, mathematical, physical, chemical and agricultural sciences as well as ICT. Scientific articles published will be on the basis of originality, importance and significant contribution to science, scientific research and the public. Scientific articles published will be on the basis of originality, importance and significant contribution to science, scientific research and the public. Scientists who subscribe to the fields listed above will be the source of papers to the journal. All articles will be reviewed by at least two experts in that particular field.