Structural and optical properties of pure and copper doped zinc oxide nanoparticles

Sajjad, Muhammad; Ullah, Inam; Khan, Mansoor; Khan, Jamshid; Qureshi, Muhammad Tauseef

doi:10.1016/j.rinp.2018.04.010

Cited by 237 publications

(96 citation statements)

References 29 publications

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“…The values of the AMZ and ZNPs were found to be 3.62 eV and 3.31eV respectively. The calculated optical band gap of pure ZnO NPs matches value given in literature [46][47][48]. For doping of Al 3+ and Mo 6+ ions in ZnO to form AMZ particles, the band gap was found to increase which indicates the blue shift (∆Eg = 0.31 eV).…”

Section: Determination Of Optical Energy Band Gap Analysissupporting

confidence: 84%

Synthesis, Characterization and Visible Light Induced Photo-Degradation of Acid Orange II Dye in Aqueous Medium using a Novel Synthesized Al2MoZnO7 Nanocomposite

Basak¹,

Ali²,

Das³

et al. 2020

JACS

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Section: Determination Of Optical Energy Band Gap Analysissupporting

confidence: 84%

Synthesis, Characterization and Visible Light Induced Photo-Degradation of Acid Orange II Dye in Aqueous Medium using a Novel Synthesized Al2MoZnO7 Nanocomposite

Basak¹,

Ali²,

Das³

et al. 2020

JACS

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“…The variation in the grain size by doping ZnO with Cu 2+ up to 5 mol% is mainly due to the alteration in the host ZnO lattice, which decreases the nucleation and subsequent growth rate by the addition of Cu concentrations up to 5 mol% the same as in ref. []. By increasing the Cu content to 3 mol% (optimum concentration), the carrier concentration and mobility in the conduction band of the semiconductor also increases …”

Section: Resultsmentioning

confidence: 99%

“…Out of these, we choose a simple, effective, and easily shapeable low temperature sol–gel method for synthesis of pure and Cu doped ZnO Nanoparticles (NPs) and investigated its optical properties. Until now, many researchers have reported the band gap widening and narrowing effect under different Cu doping concentrations . This anomalous tuning in band gap by Cu doping is further investigated for better results and to use its various applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cu Doping on Structural and Optical Properties of ZnO Nanoparticles Using Sol–Gel Method

Kumbhar

Salunke

et al. 2019

Macromolecular Symposia

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ZnO has large exciton binding energy (60 meV) and wide direct band gap (3.37 eV). It is a promising base materials for optoelectronics applications. To optimize its optical properties, Cu doped ZnO is synthesized by low cost sol–gel method and analyzed by X‐ray diffraction (XRD), scanning electron microscopy (SEM), and UV–vis spectroscopy. The XRD analysis reveals that the samples are polycrystalline with hexagonal wurtzite structure. It also indicates that there is no impurity peaks present in prepared samples and shows that the samples are stoichiometric. SEM images of Cu doping exhibit a slight variation in grain size. In addition, the absorption spectrum of pure and Cu doped ZnO nanoparticles (NPs) are studied and Tauc plots show band gap narrowing effect on Cu doping concentration to use it as advance material in diiferent devices.

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“…For the Eu and Pr doped ZnO samples, the particles seem to be more and more agglomerated, and consequently it is hard to say with greater degree about the grain size obtained from the less-resolved SEM images ( Fig. 3) [44]. EDX was applied to Eu and Pr doped CeO 2 nanoparticles prepared by co precipitation revealed in Fig.…”

Section: Characterization Of Nanoparticlesmentioning

confidence: 99%

Investigation the catalytic profile of Eu and Pr doped CeO2 nanoparticles for the thermal behavior of AP

Vara

Dave

2019

SN Appl. Sci.

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In these studies we report the catalytic proficiency of two Eu and Pr doped CeO 2 nanoparticles on the thermal behaviour of powder AP and CSPs samples. A co-precipitation method was used for synthesizing Eu and Pr doped CeO 2 nanoparticles and they were characterized by XRD, FTIR, and SEM with EDX. The catalytic proficiency of both Eu and Pr doped CeO 2 nanoparticles were investigated by utilizing TG-DSC technique. The FWO, KAS, and Starink methods were used to determine activation energies of all catalyzed AP and CSPs samples. The catalytic proficiency increased by addition of Eu and Pr doped CeO 2 nanoparticles and decomposition temperature decreased in the presence of catalyst. The activation energy decreased by the addition of Eu and Pr doped CeO 2 nanoparticles in AP and CSPs, the burning rate of CSPs found to increase by the addition of Eu and Pr doped CeO 2 nanoparticles. The Pr doped CeO 2 nanoparticles showed good catalytic efficiency on AP and CSPs that reduced the decomposition temperature around 70 °C for AP and 20 °C for CSPs. The activation energy of CSPs catalyzed by Pr doped CeO 2 nanoparticles reported 150.12, 147.60, and 146.83 kJ mol −1 by FWO, KAS, and Starink method respectively which decreases in existence of catalyst in CSPs.

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Structural and optical properties of pure and copper doped zinc oxide nanoparticles

Cited by 237 publications

References 29 publications

Synthesis, Characterization and Visible Light Induced Photo-Degradation of Acid Orange II Dye in Aqueous Medium using a Novel Synthesized Al2MoZnO7 Nanocomposite

Synthesis, Characterization and Visible Light Induced Photo-Degradation of Acid Orange II Dye in Aqueous Medium using a Novel Synthesized Al2MoZnO7 Nanocomposite

Effect of Cu Doping on Structural and Optical Properties of ZnO Nanoparticles Using Sol–Gel Method

Investigation the catalytic profile of Eu and Pr doped CeO2 nanoparticles for the thermal behavior of AP

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