Influence of Cr3+-substituted Co0.7Cu0.3Fe2-xCrxO4 nanoferrite on structural, morphological, dc electrical resistivity and magnetic properties

Chandramouli, K.; Raghavendra, Vemuri; Varma, P. V. S. K. Phanidhar; Suryanarayana, B.; Mammo, Tulu Wegayehu; Parajuli, D.; Taddesse, Paulos; Murali, N.

doi:10.1007/s00339-021-04750-z

Cited by 17 publications

(1 citation statement)

References 41 publications

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“…The results are ascribed to Cr 3+ dopants appearing at the AlO 4 tetrahedral position, inducing the lattice expansion, which is in line with the result of Rietveld refinement. [ 15 ] Stretching vibration bands at 620 and 905 cm −1 attributed to SiO and SiOAl gradually disappear because AlO 4 tetrahedra occupied by Cr 3+ dopants cause structural distortion (Figure S2, Supporting Information). The local structure evolution of AlO 4 tetrahedra has been further evaluated by 27 Al solid‐state NMR (ss‐NMR) spectra (Figure 1e).…”

Section: Resultsmentioning

confidence: 99%

Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Zou

Zhang

et al. 2022

Advanced Optical Materials

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sources represented by halogen lamps, such as high energy consumption, short lifetime, and large heat release, and show huge application potential in agriculture, food, and bioimaging fields. [1] The pivotal long-wavelength Cr 3+ -activated NIR phosphors for NIR pc-LEDs are heavily dependent on expensive Sc-and In-based compounds. [2] LiScGeO 4 is a typically long-wavelength NIR phosphor with peak wavelength of 1120 nm and full-width at half-maximum (FWHM) of 300 nm. [3] The fabricated NIR pc-LED can check the file level of opaque items due to its high penetrating power ability. The emission peak is turned from 970 to 1020 nm, and FWHMs are broadened from 225 to 285 nm in (Li,Na)In 2 SbO 6 :Cr 3+ by substituting Li + with Na + , the NIR pc-LED has the merit of avoiding red storms. [4] Unfortunately, the low thermal stability and high cost are a brake on the practical application. Simultaneously, the characteristics of Cr 3+ -doped NIR phosphor in UV and visible (Vis) light absorption bands make it impossible to realize short-wavelength emission, neglecting the demand of ultra-wide Vis-NIR luminescent materials for nondestructive Cr 3+ -activated broadband near-infrared (NIR) phosphors, featured by the octahedral coordination preference and strong absorption in visible (Vis) region, have great potential application in nondestructive assessment. It is still a challenge to develop Cr 3+ -doped phosphors with the tetrahedrally coordinated Cr 3+ NIR emission behavior and ultra-wide Vis-NIR luminescence.

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Section: Resultsmentioning

confidence: 99%

Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Zou

Zhang

et al. 2022

Advanced Optical Materials

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Correlation between the structural, magnetic, and dc resistivity properties of Co0.5M0.5-xCuxFe2O4 (M = Mg, and Zn) nano ferrites

et al. 2021

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Study of structural, electrical and magnetic properties of co-substituted Co1−2xNixMgxFe2O4 (0 ≤ x ≤ 0.25) nanoferrite materials

Mammo,

Gebresilassie,

Shanmukhi

et al. 2024

Appl. Phys. A

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Influence of Cr3+-substituted Co0.7Cu0.3Fe2-xCrxO4 nanoferrite on structural, morphological, dc electrical resistivity and magnetic properties

Cited by 17 publications

References 41 publications

Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Correlation between the structural, magnetic, and dc resistivity properties of Co0.5M0.5-xCuxFe2O4 (M = Mg, and Zn) nano ferrites

Study of structural, electrical and magnetic properties of co-substituted Co1−2xNixMgxFe2O4 (0 ≤ x ≤ 0.25) nanoferrite materials

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Influence of Cr3+-substituted Co0.7Cu0.3Fe2-xCrxO4 nanoferrite on structural, morphological, dc electrical resistivity and magnetic properties

Cited by 17 publications

References 41 publications

Ultra‐Wide Vis–NIR Mg2Al4Si5O18:Eu2+,Cr3+ Phosphor Containing Unusual NIR Luminescence Induced by Cr3+ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Ultra‐Wide Vis–NIR Mg2Al4Si5O18:Eu2+,Cr3+ Phosphor Containing Unusual NIR Luminescence Induced by Cr3+ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Correlation between the structural, magnetic, and dc resistivity properties of Co0.5M0.5-xCuxFe2O4 (M = Mg, and Zn) nano ferrites

Study of structural, electrical and magnetic properties of co-substituted Co1−2xNixMgxFe2O4 (0 ≤ x ≤ 0.25) nanoferrite materials

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Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging

Ultra‐Wide Vis–NIR Mg₂Al₄Si₅O₁₈:Eu²⁺,Cr³⁺ Phosphor Containing Unusual NIR Luminescence Induced by Cr³⁺ Occupying Tetrahedral Coordination for Hyperspectral Imaging