Mn and Ce doping in hydrothermally derived CaSnO3 perovskite nanostructure. A facile way to enhance optical, magnetic and electrochemical properties

Bhat, Aadil Ahmad; Tomar, Radha

doi:10.1016/j.jallcom.2021.160043

Cited by 28 publications

(6 citation statements)

References 44 publications

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“…11,12 Bhat et al successfully incorporated the Mn and Ce in CaSnO 3 perovskite. 13 Islam et al shows the effect of Mn doping on the structural properties of BaSnO 3 nanomaterial. 14 For the tuning of physio-chemical properties of perovskite several transition metals (Cr, Cu, Co, and Fe) have been incorporated in the host material, which results in the fascinating optical, magnetic, and photo catalytic behavior.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

et al. 2021

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The present article investigates the fabrication of MnSnO 3, and Fe doped MnSnO 3 perovskite. We are reporting for the first time Fe doping perovskite material. The synthesis has been carried out under subcritical conditions. The optical, electrochemical, and luminescence properties were investigated. The structural determination of nanostructures has been carried out through XRD and Fourier transform infrared (FTIR). Furthermore, scanning electron micro-

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Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

et al. 2021

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“…These disruptions can manifest as structural defects, distortions, or even the formation of secondary phases. As a consequence of these disturbances, the XRD peaks experience a shift toward lower 2θ values, contrary to the anticipated higher angle shift. − The incorporation of Fe in place of Sn in the Cs 2 SnCl 6 perovskite can lead to significant effects on lattice parameters and induce structural changes in the crystal lattice. These changes are associated with the differences in ionic radii and chemical properties between Sn and Fe.…”

Section: Resultsmentioning

confidence: 99%

Bandgap Engineering through Fe Doping in Cs₂SnCl₆ Perovskite: Photoluminescence Characteristics and Electronic Structure Insights

Bhat,

Farooq,

Mearaj

et al. 2024

Energy Fuels

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The potential use of vacancy ordered double halide perovskites Cs 2 SnX 6 , where X = Cl, Br, and I, has increased because of recent progress in bandgap engineering and material science, giving them designable photovoltaic applications. Here, we disclose the straightforward solvothermal approach to synthesize Fe-doped Cs 2 SnCl 6 perovskite. Both the pristine (Cs 2 SnCl 6 ) and Fe:Cs 2 SnCl 6 crystals show a cubic arrangement of crystals with Fm3̅ m space symmetry. A subsequent crystalline phase on doping is confirmed by the examination of the ( 220) XRD peak and the strong correlation between Rietveld refinement and the cubic phase. Fe 2+ ion doping allows for a steady room-temperature photoluminescence (PL) emission center at 440 nm by lowering the band gap to 3.1 eV. Notably, an optimal 5% Fe doping concentration manifests the highest PL intensity, reaching a remarkable photoluminescence quantum yield (PLQY) of up to 55%. However, beyond this threshold, concentration quenching diminishes the PL intensity, highlighting the delicate balance in doping effects. The Cs 2 SnCl 6 crystal lattice exhibits band splitting confirmed from density functional theory simulations. The anisotropic development results in a huge micrometer-sized nearly 10−20 μm truncated octahedral morphology, which is confirmed by SEM. This work not only advances the empirical understanding of Fe:Cs 2 SnCl 6 PL characteristics but also shows its potential for applications in various optoelectronic devices such as LEDs and solar cells. Moreover, the ability to tailor the bandgap in perovskite materials offers opportunities for improved efficiency and performance in these devices.

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“…This is because the exciton energy levels responsible for the photoluminescence lie just below the conduction band minima between the conduction and the valance band. The emission (blue emission) at 461 nm (2.68 eV) is believed to have appeared due to the electronic Mn 2+ [ 4 T 1g – 6 A 1g ] d–d spin-forbidden transition by transfer of energy from excitons in the host SrSnO 3 material . From the PL spectra, it is clearly visible that the emission peak intensities increase with the doping concentration and thereby enhance the photoluminescence behavior of the material.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The emission (blue emission) at 461 nm (2.68 eV) is believed to have appeared due to the electronic Mn 2+ [ 4 T 1g − 6 A 1g ] d−d spinforbidden transition by transfer of energy from excitons in the host SrSnO 3 material. 34 From the PL spectra, it is clearly visible that the emission peak intensities increase with the doping concentration and thereby enhance the photoluminescence behavior of the material. Out of the five samples, sample E has higher peak intensity and hence exhibits better photoluminescence.…”

Section: Ftir Analysismentioning

confidence: 99%

Facile Way of Making Hydrothermally Synthesized Crystalline SrSnO₃ Perovskite Nanorods Suitable for Blue LEDs and Spintronic Applications

et al. 2021

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Mn doping in SrSnO 3 perovskite material via hydrothermal process under subcritical conditions is reported for the very first time. The present article aims to carry this perovskite suitable for blue light-emitting diodes (LEDs) and spintronic applications. The influence of various Mn doping percentages on structural, morphological, compositional, optical, photoluminescent, and magnetic properties of SrSnO 3 is demonstrated. The perovskite material is grown in an orthorhombic crystal structure having a space symmetry of Pnma along with point group of mmm as determined from the Rietveld refinement. Doping is an excellent way to modify the properties of wide-band-gap perovskite nanostructures. Incorporation of Mn is the result of exact substitution. Morphological studies indicate formation of rodlike structures with thickness in nanoscale dimensions (180–280 nm), and the thickness is a function of doping concentration. The higher doping concentration resulted in enhanced growth of the nanorods. Selected area electron diffraction (SAED) results showed the single-crystal nature of the nanorods. Thermogravimetric analysis (TGA) confirmed the high stability of the material at elevated temperatures. Also, the doped perovskite material is transparent in the visible light, active in the ultraviolet region having a band gap of ∼2.78 eV, and is tuned up to 2.25 eV as the Mn doping concentration reaches 10%. The transfer of excitonic energy from the host material to the dopant Mn 2+ ion leads to the formation of spin-forbidden [ 4 T 1 – 6 A 1 ] emission. Later on, photoluminescence study indicates an enhancement in luminescence behavior of Mn doped perovskite nanostructures. The Commission Internationale de l’éclairage (CIE) diagram drawn to find the color coordinates of the nanorods determines their suitability for blue LEDs. In addition, Mn doping results the conversion of diamagnetic SrSnO 3 into a ferromagnetic material, making the nanorods suitable for spintronic applications.

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Mn and Ce doping in hydrothermally derived CaSnO3 perovskite nanostructure. A facile way to enhance optical, magnetic and electrochemical properties

Cited by 28 publications

References 44 publications

Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Bandgap Engineering through Fe Doping in Cs₂SnCl₆ Perovskite: Photoluminescence Characteristics and Electronic Structure Insights

Facile Way of Making Hydrothermally Synthesized Crystalline SrSnO₃ Perovskite Nanorods Suitable for Blue LEDs and Spintronic Applications

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Mn and Ce doping in hydrothermally derived CaSnO3 perovskite nanostructure. A facile way to enhance optical, magnetic and electrochemical properties

Cited by 28 publications

References 44 publications

Solvothermal synthesis of Fe doped MnSnO 3 : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Solvothermal synthesis of Fe doped MnSnO 3 : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Bandgap Engineering through Fe Doping in Cs2SnCl6 Perovskite: Photoluminescence Characteristics and Electronic Structure Insights

Facile Way of Making Hydrothermally Synthesized Crystalline SrSnO3 Perovskite Nanorods Suitable for Blue LEDs and Spintronic Applications

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Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Solvothermal synthesis of Fe doped MnSnO ₃ : An approach of wide bandgap perovskite towards optical, luminescence, and electrochemical properties

Bandgap Engineering through Fe Doping in Cs₂SnCl₆ Perovskite: Photoluminescence Characteristics and Electronic Structure Insights

Facile Way of Making Hydrothermally Synthesized Crystalline SrSnO₃ Perovskite Nanorods Suitable for Blue LEDs and Spintronic Applications