Effect of Cu2+ doping on the structural, optical, and vapor-sensing properties of ZnO thin films prepared by SILAR method

Devi, K. Radhi; Selvan, G.; Prasad, K. Hari; Karunakaran, M.; Kasirajan, K.; Ganesh, V.; AlFaify, S.

doi:10.1007/s10854-020-04210-z

Cited by 18 publications

(2 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This interchange mechanism contributes to changes in the depletion layer and changes in surface or grain boundary. In the experiment, the main reasons for the change in the vapour sensor's electrical properties appear to be the oxygen contribution [32][33][34][35][36]. In Zr (3 wt.…”

Section: Nh3 Vapour Sensing Studiesmentioning

confidence: 99%

Recent advances in Performance and effect of Zr doping with ZnO thin film sensor in Ammonia Vapour Sensing

2021

Global NEST: The International Journal

View full text Add to dashboard Cite

<p>Pure and Zr doped ZnO thin films were prepared using SILAR technique. The influence of Zr doping on structural, morphological, optical and gas sensing properties of ZnO has been reported. X-ray diffraction study confirmed the formation of wurtzite structure of ZnO thin film (JCPDS 36-1451) fabricated by SILAR technique and the caluculated crystallites size of pure and doped ZnO were 39 and 36 nm respectively . SEM analysis of thin films has shown a completely different surface morphology. EDAX spetrum cnfirmed the presence of different compositional element in the fabriated thin films. Zr (3 wt%) doped ZnO thin film exhibited the best properties with a good transmittance and it has wide band gap of 3.26 eV. Photoluminescence emissions indicated increase in concentration of oxygen vacancies with introduction of dopant. NH3 vapour sensors were fabricated out of fabricated samples and it was observed that doped samples have significantly high sensing response, good selectivity, fast response and recovery time to ammonia vapoutr at room temperature.</p>

show abstract

Section: Nh3 Vapour Sensing Studiesmentioning

confidence: 99%

Recent advances in Performance and effect of Zr doping with ZnO thin film sensor in Ammonia Vapour Sensing

2021

Global NEST: The International Journal

View full text Add to dashboard Cite

show abstract

“…Most of the existing literature focuses on the study of SILAR-coated ZnO films in the context of gas, vapour and alcohol sensors [48][49][50][51][52] and photoelectrochemical studies [38,53]. However, there is very little research specifically addressing the effect of film thickness of ZnO grown using the SILAR technique on the photodegradation rate of dyes under sunlight.…”

Section: Introductionmentioning

confidence: 99%

Effect of film thickness on the electrical and the photocatalytic properties of ZnO nanorods grown by SILAR technique

Yousra,

Guettaf Temam,

Saâd

et al. 2023

Phys. Scr.

View full text Add to dashboard Cite

In this work, Zinc oxide (ZnO) thin films were synthesised by the successive ionic layer adsorption and reaction (SILAR) technique at various number of cycles (10–50 cycles). The effect of film thickness on the structural properties, surface morphology, optical and electrical properties, and sunlight assisted photocatalytic activities through photocatalytic degradation of Methylene Blue (MB) dye of ZnO thin films were studied. The energy dispersive x-rays (EDX) analysis confirmed the presence Zn and O elements. The x-rays diffraction (XRD) pattern showed the polycrystalline nature of ZnO thin films and the crystallite size increases with film thickness. The SEM images showed that a greater film thickness resulted in the growth of hexagonal nanorods arrays. Atomic force microscopy (AFM) images revealed that the surface roughness increases with film thickness yielding in an enhanced specific surface area. The UV—visible transmission spectra showed that increasing film thickness results in band gap expansion from 3.15 eV to 3.31 eV together with a reduction in optical transmittance. The estimated sheet resistance and resistivity were found to be in the range of 1.34–7.1 Ω sq−1 and 0.09–2.12 ×10–1 Ω.cm. The photocatalytic studies reveal that increasing film thickness leads to an improved photocatalytic efficiency of ZnO films. The enhanced photocatalytic activity of ZnO films is due to the increased surface area and low recombination rate of carriers charges (e−/h+), resulting from band gap expansion.

show abstract

Well-Controlled Nanostructured Growth: Successive Ionic Layer Adsorption And Reaction

Pandit

Nikam²,

Ubaidullah

2023

Simple Chemical Methods for Thin Film Deposition

View full text Add to dashboard Cite

Effect of Cu2+ doping on the structural, optical, and vapor-sensing properties of ZnO thin films prepared by SILAR method

Cited by 18 publications

References 51 publications

Recent advances in Performance and effect of Zr doping with ZnO thin film sensor in Ammonia Vapour Sensing

Recent advances in Performance and effect of Zr doping with ZnO thin film sensor in Ammonia Vapour Sensing

Effect of film thickness on the electrical and the photocatalytic properties of ZnO nanorods grown by SILAR technique

Well-Controlled Nanostructured Growth: Successive Ionic Layer Adsorption And Reaction

Contact Info

Product

Resources

About