Comparison of Structural and Optical Properties of CdS Thin Films Grown by CSVT, CBD and Sputtering Techniques

Islam, Mohammad Aminul; Hossain, Shabbir; Aliyu, M. M.; Chelvanathan, Puvaneswaran; Huda, Q.; Karim, Mohammad Rezaul; Sopian, Kamaruzzaman; Amin, Nowshad

doi:10.1016/j.egypro.2013.05.059

Cited by 102 publications

(35 citation statements)

References 23 publications

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“…The optical band gap energy of the films was determined using the Tauc formula [20,21]. Figure 5 shows the extrapolation of (ahm) 2 versus hm with the intercept of the straight line with the hm axis which gives the band gap values.…”

Section: Methodsmentioning

confidence: 99%

Investigation of annealing temperature effect on magnetron sputtered cadmium sulfide thin film properties

et al. 2016

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Cadmium sulfide (CdS) thin films are deposited on the fluorine doped tin oxide coated glass substrate using the radio frequency magnetron sputtering setup. The effects of annealing in air on the structural, morphological, and optical properties of CdS thin film are studied. Optimal annealing temperature is investigated by annealing the CdS thin film at different annealing temperatures of 300, 400, and 500°C. Thin films of CdS are characterized by X-ray diffractometer analysis, field emission scanning electron microscopy, atomic force microscopy, UV-Vis-NIR spectrophotometer and four point probe. The as-grown CdS films are found to be polycrystalline in nature with a mixture of cubic and hexagonal phases. By increasing the annealing temperature to 500°C, CdS film showed cubic phase, indicating the phase transition of CdS. It is found from physical characterizations that the heat treatment in air increased the mean grain size, the transmission, and the surface roughness of the CdS thin film, which are desired to the application in solar cells as a window layer material.

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Section: Methodsmentioning

confidence: 99%

Investigation of annealing temperature effect on magnetron sputtered cadmium sulfide thin film properties

et al. 2016

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“…It belongs to groups II-VI semiconductor having a wide bandgap of 2.4 eV, therefore is extensively studied in many optoelectronic devices such as solar cells, field effect transistors [3], photodetectors [4], and light emitting diodes [5]. CdS thin films were prepared by various methods such as sputtering [6], electrochemical deposition [7], vacuum deposition [8] and chemical bath deposition (CBD) [9][10][11][12][13][14]. Among all the techniques, CBD, a low temperature process appears to be the best technique to deposit CdS thin films with suitable properties for various device applications due to its simplicity and low cost.…”

Section: Introductionmentioning

confidence: 99%

CdS thin films prepared by laser assisted chemical bath deposition

García

Mendivil

Guillén

et al. 2015

Applied Surface Science

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“…However, solution based techniques are more economical and efficient for large scale production of nano film based photodetectors. 5 Chemical bath deposition (CBD) [6][7][8][9][10][11][12][13][14][15][16][17] is the most commonly used technique to make CdS thin films and have been studied heavily for their photodynamics, electro-optical studies and also known low cost material for photodetector applications. One of the big advantages of CBD method is that film can be made over a large area (mm 2 ).…”

Section: Introductionmentioning

confidence: 99%

Channel length specific broadspectral photosensitivity of robust chemically grown CdS photodetector

et al. 2015

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CdS grown by chemical bath deposition (CBD) technique is very simple, robust, economical method and has potential large scale applications in solar cells, photovoltaic, photodetectors, sensors and optoelectronic devices. Here we report channel lengths (CLs) specific broadspectral photoresponse properties of commonly grown robust CdS films by CBD. The broadspectral dependent current flow has been observed in all CLs and the rise and decay times have been measured in milliseconds for visible wavelengths (400-700nm). The rise time curves showed linear dependency when measured for CLs 300, 500 and 700nm and non-linearity was observed for CLs 7μm, 45μm and 350μm. We have noticed that decrease in channel lengths down to nanometers (300 nm) increases the response time. Three steps decay time has been noticed for all CLs. The shorter channels (nm) showed two trends in decay time, small increase for wavelengths <550nm and significant increase for wavelengths >550nm. Finally, CLs specific broadspectral photosensitivity has been investigated which indicates the device geometry and fabrication method play an important role for defining the CdS based photodetectors or simulating the characteristics of a photodetector.

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Comparison of Structural and Optical Properties of CdS Thin Films Grown by CSVT, CBD and Sputtering Techniques

Cited by 102 publications

References 23 publications

Investigation of annealing temperature effect on magnetron sputtered cadmium sulfide thin film properties

Investigation of annealing temperature effect on magnetron sputtered cadmium sulfide thin film properties

CdS thin films prepared by laser assisted chemical bath deposition

Channel length specific broadspectral photosensitivity of robust chemically grown CdS photodetector

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