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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gupta, Manoj Kumar
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Production of Natural Straw-Derived Sustainable Polymer Composites for a Circular Agro-Economycitations
- 2023Sustainable robust waste-recycled ocean water-resistant fly ash-carbon nanotube nanocomposite-based triboelectric nanogeneratorcitations
- 2023Blue light emitting piezoelectric few-layered borophene nanosheets for flexible nanogeneratorscitations
- 2022Adhesive assisted TiB2 coating effects on friction stir welded jointscitations
- 2022Flexible Interconnected Cu‐Ni Nanoalloys Decorated Carbon Nanotube‐Poly(vinylidene fluoride) Piezoelectric Nanogeneratorcitations
- 2020Transforming marble waste into high-performance, water-resistant, and thermally insulative hybrid polymer composites for environmental sustainabilitycitations
- 2017Highly efficient flexible piezoelectric nanogenerator and femtosecond two-photon absorption properties of nonlinear lithium niobate nanowirescitations
- 2012Dielectric studies and band gap tuning of ferroelectric Cr-doped ZnO nanorodscitations
- 2004Encapsulation of air‐filled poly(dimethylsiloxane) microballoons in polyimide as a polymeric low ε dielectriccitations
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article
Dielectric studies and band gap tuning of ferroelectric Cr-doped ZnO nanorods
Abstract
<jats:p>Effect of Cr-doping on the optical behavior of ZnO nanorods (NRs) (size: diameter ∼ 40 nm and length ∼ 400 nm) is reported. Significant red shift of 18 nm was observed in UV-Vis studies, i.e., a band gap tuning is achieved by Cr doping. In photoluminescence studies, a very remarkable blue shift of 16 nm in green emission was observed. Significant shifts in various modes of Raman spectra of Cr-doped ZnO nanorods are observed in low and high wavenumber region, along with appearance and disappearance of other peaks. The results suggest that Cr-doping can affect the defects and oxygen vacancies in ZnO nanomaterials giving the possibility of fine band gap tuning for tailor made applications of nano-optoelectronics devices. A very high dielectric constant (950) at low frequency side and ferroelectric phase transition (69 °C) were found for Cr-doped ZnO NR, which make it suitable for charge storage and nanoscale memory devices.</jats:p>