Synthesis of rare-earth-activated phosphors

Priya, Ruby; Bhatia, Smriti; Kaur, Sandeep; Dubey, Vikas; Pandey, O.P.

doi:10.1016/b978-0-323-89856-0.00004-3

Cited by 3 publications

(2 citation statements)

References 208 publications

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“…Photoluminescence Spectroscopy involves illuminating the material with photons and measuring the photoluminescence (emitted light) in response to the excitation. It provides information about the material’s luminescent properties, recombination processes, and defect states. − …”

Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Aslam,

Doane,

Yeung

et al. 2023

ACS Appl. Opt. Mater.

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Nonlinear optical (NLO) materials are an interesting class of compounds that have found application in many aspects of our ordinary lives. Solid-state NLO materials can be classified into organic, inorganic, and hybrid. This brief review article has the aim of introducing the readers to the fundamental principles of nonlinear optics while focusing on the inorganic solid-state NLO materials with an emphasis on their structural peculiarities, synthetic methods, and applications. The materials will be grouped by their intended spectral application: mid-and far-IR (chalcogenides, halides, and pnictides), near-IR and visible ranges (KDP, KTP and iodates), and UV and deep-UV (borates, carbonates, nitrates, and phosphates). Among the compounds that are discussed, several classes are highlighted: promising IR compounds with wide band gaps (E g > 3.5 eV) with second harmonic generation (SHG) coefficients comparable to industry standard AgGaS 2 (d ij ≥ 1 × AGS) suitable for mid-IR NLO applications, NLO compounds that can meet commercial requirements in the vis-NIR and UV regions, and deep-UV materials with even wider band gaps (E g > 6.2 eV) and SHG coefficients surpassing those of traditional KH 2 PO 4 crystals (d ij ≥ 1 × KDP). Several prevailing synthetic methods (solid-state, flux, and hydrothermal) are discussed, and different types of characterization techniques are presented. Finally, applications, ranging from lasers and quantum and neuromorphic computing to "uses beyond optics" in battery electrodes and ionic conductors are discussed. Although brief, we hope this review will provide valuable insights into the fast-expanding field of solid-state NLO materials.

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Section: Characterization Techniques Of Nlo Materialsmentioning

confidence: 99%

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Aslam,

Doane,

Yeung

et al. 2023

ACS Appl. Opt. Mater.

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show abstract

“…The ZnO nanostructure dimension is also varied by the hydroxide ion concentration of precur-sors, which affects the surface defect states and hence the QY [38]. Factors such as surfactants, dopants, precipitating agents, and fluxing agents during the synthesis process of rare earth-doped phosphors affect the product's crystallinity and morphology and hence the luminescence [39]. In perovskite structures, doping Zn is also a promising approach to achieve uniform morphology, improved stability, and higher PL intensity [40,41].…”

Section: Introductionmentioning

confidence: 99%

Engineering of Multidimensional Core-Shell Perovskite Precursors to Obtain Superior Luminescence and Incorporating in Luminescent Solar Concentrators

Bagherzadeh-Khajehmarjan,

Ahmadi-Kandjani,

AmirKooshesh

et al. 2024

International Journal of Energy Research

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The luminescence feature of perovskite NPs with high PLQY directs them to lighting and display applications. 2D A2MAn−1PbnBr3n+1 (n=1−6) perovskites with A as octylammonium and benzylammonium cations are synthesized by the LARP method, in which the highest PL emission is attained to the n=6 sample with benzylamine cation. XRD results reveal the appearance of diffraction peaks related to 3D perovskites with increasing n value. Mixing 3D perovskites with 2D ones leads to the formation of core-shell MAPbBr3−A2MAn−1PbnBr3n+1 (n=1−6) nanostructures, confirmed by TEM images and optical properties. Incorporation of Zn to core-shell perovskites improves the PL intensity and induces higher crystallinity. A blue shift in absorption and emission spectra of Zn-doped perovskites is observed. The highest PLQY (94%) is attributed to the Zn-doped core-shell perovskite with n=6 among the all-synthesized samples. Luminescent solar concentrators with thicknesses of 2 mm and 5 mm are fabricated with benzylamine-based perovskites, because of their greater PLQY versus octylamine-based perovskites. The performance of LSC devices is boosted for the LSC with 5 mm thickness. The relative PCE obtained for the core-shell perovskite-based LSC with thickness of 5 mm reaches to almost 60%.

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Optical response of green synthesized thin Cr2O3 films prepared via drop and spin coatings

Tsegay

Gebretinsae

Welegergs

et al. 2023

Materials Today: Proceedings

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Synthesis of rare-earth-activated phosphors

Cited by 3 publications

References 208 publications

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Advances in Solid-State Nonlinear Optical Materials: From Fundamentals to Applications

Engineering of Multidimensional Core-Shell Perovskite Precursors to Obtain Superior Luminescence and Incorporating in Luminescent Solar Concentrators

Optical response of green synthesized thin Cr2O3 films prepared via drop and spin coatings

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