The influence of post-growth heat treatment on the optical properties of pulsed laser deposited ZnO thin films

Kumar, Pawan; Nisha,; Sarkar, Prosenjit; Singh, Sachin Kumar; Mishra, B. C. K.; Katiyar, Ram S.

doi:10.1007/s00339-022-05511-2

Cited by 12 publications

(8 citation statements)

References 27 publications

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“…The absorption coefficient α was estimated by utilizing the relation 2, [38]

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\rm \alpha }={{2.303\times {\rm A}}\over{{\rm t}}}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

“…where t and A are the thickness and absorbance of the thin films, respectively. For a direct allowed transitions, Tauc's equation [38] was used to evaluate the band gap value given in equation (3);3

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\left({\rm \alpha }{\rm h}{\rm \upsilon }\right)}^{2}={\rm A}({\rm h}{\rm \upsilon }-{{\rm E}}_{{\rm g}})\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

Section: Optical Analysismentioning

confidence: 99%

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Enhanced Opto‐Electrical Properties of Chalcogenide‐Rich Tin Selenide Thin Film after Incorporating Sulfur Yielding Tin Sulfoselenide

Sarkar,

Nisha,

Kumar

et al. 2023

ChemistrySelect

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Alloy engineering are efficient methods to improve the physical properties of two‐dimensional (2D) material‐based photovoltaic application. Tin chalcogenide belonging to layered structured semiconducting family has been a significant compound due to its outstanding characteristics. Tin selenide (SnSe) is known as promising layered compound to develop 2D materials for optoelectronic devices. The current study focused onto the effect of tin sulfoselenide (SnSSe) alloy engineering on the structural, morphological, optical, and electrical characteristics. X‐ray Diffraction (XRD) confirmed that SnSSe and SnSe are exist in the orthorhombic crystal structure phase without other secondary phases, with the preferred high‐intensity peak along (111) oriented plane. Raman spectra was reported to give information about the vibrational characteristics of the compounds. The presence of Sulfur ion in SnSSe was further confirmed by Energy Dispersive X‐ray Spectroscopy (EDAX) and X‐ray Photoelectron Spectroscopy (XPS) analysis. Bandgap energy (Eg) has been analysed by Tauc's plot and the derivative of transmittance spectra. According to both sets of analyses, the bandgap of the SnSSe thin film is considerably smaller than that of the SnSe thin film. Hall measurements indicated that SnSSe exhibits the higher hole mobility. The present work‘s results offer useful insight into the prospective device applications of two‐dimensional alloy materials.

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“…The absorption coefficient α was estimated by utilizing the relation 2, [38]

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\rm \alpha }={{2.303\times {\rm A}}\over{{\rm t}}}\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\left({\rm \alpha }{\rm h}{\rm \upsilon }\right)}^{2}={\rm A}({\rm h}{\rm \upsilon }-{{\rm E}}_{{\rm g}})\hfill\cr}}

…”

Section: Resultsmentioning

confidence: 99%

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Enhanced Opto‐Electrical Properties of Chalcogenide‐Rich Tin Selenide Thin Film after Incorporating Sulfur Yielding Tin Sulfoselenide

Sarkar,

Nisha,

Kumar

et al. 2023

ChemistrySelect

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“…To date, various physical and chemical preparation techniques have been used to synthesize ZnO thin films, including chemical vapor deposition [14], pulsed-laser deposition (PLD) [15], glancing angle deposition (GLAD) technique [16], sputtering [17], spray pyrolysis technique [18], electron beam evaporation [19], molecular beam epitaxy [20] and sol-gel deposition [21]. Among these deposition methods, sol-gel dip coating is a versatile and inexpensive method for fabricating thin films [22].…”

Section: Introductionmentioning

confidence: 99%

Combined Effects of Ultraviolet Irradiation and Magnetic Field on the Properties of Dip-coated ZnO thin films

Chalabi,

Loucif,

Alarfaj

2023

Mater. Res. Express

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In this study, four ZnO thin films were deposited on FTO substrates using the sol–gel dip coating method to examine their microstructural, morphological, and optical properties through various techniques. Three of them were subjected to ultraviolet (UV) light, magnetic field (MF), and a combination of UV and MF during deposition, referred as ZnO: UV, ZnO: MF, and ZnO: (UV+MF), respectively. The results obtained showed that the simultaneous UV and MF exposure improved the crystallinity and surface homogeneity of the as-deposited film. Moreover, ZnO: (UV+MF) film exhibited an average transparency of 80% in the visible region and a high optical bandgap (3.67 eV). Room-temperature photoluminescence (PL) spectra revealed a weak UV emission and a strong violet emission peaks for all films. However, the violet emission intensity being lower in ZnO: UV and ZnO: MF films due to a reduction in zinc interstitials (Zni) defects, The simultaneous UV and MF exposure did not reduce Zni defects, and the violet emission intensity was almost identical to that of the untreated film. These findings suggest that the ZnO: (UV+MF) film can be a promising candidate for the development of ultraviolet and violet lasers and light-emitting diodes.

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“…[11]. Due to their novel uses in adsorptions [12], sensor activity [13], heat treatment [14], antimicrobial activity [15], antifungal activity [16], wound healing [17], ultra-violet filtering [18], and excessive catalytic and photochemical activity [19][20], ZnO NPs have attracted the attention of researchers. Nearly all researchers concur that it's critical to create green nanomaterial in an aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

Carboxymethyl Tamarind Kernel Gum /ZnO- Biocomposite: As an Antifungal and Hazardous Metal Removal Agent

Meena¹,

Chandra²,

Warkar³

2022

JNMES

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ZnO nanoparticles (ZnO NPs) were in situ mixed with carboxymethyl tamarind kernel gum to generate the new biocomposite. High-resolution transmission electron microscopy (HR-TEM), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR), x-ray diffraction analysis (XRD), and dynamic light scattering (DLS)were used to characterize the CMTKG/ZnO nanocomposites. Numerous characterizations were utilized to prove that ZnO NPs had been integrated into the biopolymer matrix. The standard size of the CMTKG/ZnO nanocomposites was developed to be greater than 32–40 nm using high-resolution transmission electron microscopy and x-ray analysis de-Scherer methods. Chromium (VI) was removed from the aqueous solution using the nanocomposite (CMTKG/ZnO) as an adsorbent. The nanocomposite reached its maximum adsorption during 80 minutes of contact time, 30 mg/L chromium (VI) concentration, 2.0 g/L adsorbent part, and 7.0 pH. Further research into the antifungal activity of CMTKG/ZnO nanocomposites against Aspergillus flavus MTCC-2799 was conducted.

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The influence of post-growth heat treatment on the optical properties of pulsed laser deposited ZnO thin films

Cited by 12 publications

References 27 publications

Enhanced Opto‐Electrical Properties of Chalcogenide‐Rich Tin Selenide Thin Film after Incorporating Sulfur Yielding Tin Sulfoselenide

Enhanced Opto‐Electrical Properties of Chalcogenide‐Rich Tin Selenide Thin Film after Incorporating Sulfur Yielding Tin Sulfoselenide

Combined Effects of Ultraviolet Irradiation and Magnetic Field on the Properties of Dip-coated ZnO thin films

Carboxymethyl Tamarind Kernel Gum /ZnO- Biocomposite: As an Antifungal and Hazardous Metal Removal Agent

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