A comparative study of chalcogenide thin films for micro sensor applications

Chalcogenide Letters

article

M. Essi¹  G. Cisse¹  W. Atse¹  K. N’gbra¹ 

[1] UFR-SSMT, Université Félix HOUPHOUET-BOIGNY de Cocody

关键词: Chalcogenide;    Thin films;    Cadmium (+II);    Ion selective electrode;    Micro-sensor;    Pulsed laser deposition;    Thermal evaporation;    RF sputtering;   

DOI  :  10.15251/CL.2022.198.535

学科分类：物理（综合）

来源: Forum of Chalcogeniders

【 摘 要 】

Cadmium chalcogenide thin films were deposited by different processes. Pulsed laser deposition, thermal evaporation, and sputtering were used to elaborate micro devices on glass substrate from CdS-AgI-Ag2S-As2S3, CdS-Ag2S-Sb2S3 and Cd-Ag-As2S3 starting materials respectively. The micro films were characterised using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and electrochemistry. Comparative structural characterisation leads us to understand sensors out-put signal. The best miniaturised sensor was selected. The very first electrochemical results are presented. The potentiometric response of Cd-Ag-As2S3 sensing matrix showed a quasi-Nernstian behaviour with a great detection limit. Moreover Cd-ISE is sensitive to silver (+I) in solution.

【 授权许可】

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