Single step chemical growth of ZnMgS nanorod thin film and its DFT study

ZnMgS NR visible light photosensor by simple one step chemical bath deposition technique. [Display omitted] •ZnMgS one dimensional nanorod (NR) thin films using single step chemical approach.•The structural and morphological investigations confirms the formation vertically aligned 1-D nanorods.•In e...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2018-02, Vol.228, p.91-95
Main Authors: Dive, Avinash S., Gattu, Ketan P., Huse, Nanasaheb P., Upadhayay, Devesh R., Phase, D.M., Sharma, Ramphal B.
Format: Article
Language:English
Subjects:
Chemical bath deposition
Compressive properties
Crystals
DFT
Glass substrates
Morphology
Nanorods
Photosensitivity
Strain
Thin films
ZnMgS
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Summary:ZnMgS NR visible light photosensor by simple one step chemical bath deposition technique. [Display omitted] •ZnMgS one dimensional nanorod (NR) thin films using single step chemical approach.•The structural and morphological investigations confirms the formation vertically aligned 1-D nanorods.•In electrical study, ZnMgS NR thin film showed a response of 99% photosensitivity under illumination of 100 W/cm2.•The experimental results of ZnMgS NR thin film prove it be a promising candidate for visible light photosensor. Herein, ZnMgS nanorod (NR) thin film has been grown by facile single step chemical bath deposition technique. Initially, vertically aligned ZnMgS NR having ∼3 µm length and diameter of ∼200 nm were deposited on commercial glass substrate. The morphology characterizations of this nanorod thin film were observed by FE-SEM and TEM. The randomly oriented hexagonal type nanorods were grown on the glass surface. The strong and highly intense (0 0 2) peak in the XRD pattern along with the calculated low compressive strain indicates vertical growth of high-quality crystalline ZnMgS nanorods. The films showed a direct band transition at ∼3.62 eV. The photosensing properties of NR thin film of ZnMgS showed an excellent photoresponsivity of 34.6 μA/Watt and photosensitivity 99% respectively under illumination of 100 W/cm2 at a bias voltage 5 V. The obtained experimental results were found to be consistent with theoretical results obtained using DFT.
ISSN:0921-5107
1873-4944
DOI:10.1016/j.mseb.2017.11.018