Highly Stable White Light Emission from III-Nitride Nanowire LEDs Utilizing Nanostructured Alumina-Doped Mn4+and Mg2+

Article Optics

High-efficiency InGaN blue LEDs with reduced positive sheet polarization

Ravi Teja Velpula et al.

Summary: This study mitigates the effect of positive sheet polarization charges in III-nitride light-emitting diodes by employing a lattice matched last QB, effectively reducing electron leakage and promoting hole injection.

APPLIED OPTICS (2022)

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Review Engineering, Electrical & Electronic

III-nitride nanostructures: Emerging applications for Micro-LEDs, ultraviolet photonics, quantum optoelectronics, and artificial photosynthesis

Yuanpeng Wu et al.

Summary: This review article discusses the molecular beam epitaxy and properties of III-nitride nanostructures, and their applications in photonics, optoelectronics, and artificial photosynthesis. These applications are relevant for next-generation mobile displays, virtual/augmented reality, quantum communication, and sustainability in energy, water, and the environment.

PROGRESS IN QUANTUM ELECTRONICS (2022)

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Article Chemistry, Applied

Enhanced luminescence performances of Mn4+-activated Sr4Al14O25 red phosphors by doping with Sc3+ ions

Lin Luo et al.

Summary: In this study, non-rare earth Mn4+-activated strontium aluminate phosphors co-doped with Sc3+ ions were successfully synthesized, showing efficient luminescent properties and microstructural changes, revealing the influence of Sc3+ ions on the luminescence performance. The luminous intensity of Sr4Al14-xScxO25:Mn4+ co-doped with Sc3+ ions was increased by 60% compared to the singly doped sample, indicating great potential for applications in LCD backlights.

JOURNAL OF RARE EARTHS (2021)

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Review Chemistry, Physical

High temperature transition aluminas in δ-Al2O3/θ-Al2O3 stability range: Review

Libor Kovarik et al.

Summary: This review critically examines the crystallography and structural complexity of high temperature treated transition aluminas, including the crystallography of delta- and theta-Al2O3 polymorphs, structural intergrowth and disorder accommodation, overall microstructure complexity, as well as challenges and recent progress in quantifying the structure at ensemble level. The review also discusses the surface properties of high temperature treated Al2O3 and their implications for understanding attributes relevant to heterogeneous catalysis.

JOURNAL OF CATALYSIS (2021)

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Review Chemistry, Analytical

Short review on recent progress in Mn4+-activated oxide phosphors for indoor plant light-emitting diodes

Sanjay J. Dhoble et al.

Summary: This review article discusses the recent progress on Mn-doped oxides for indoor plant growth, focusing on the synthesis conditions, luminescent properties, and fabrication of LEDs for plant growth applications.

LUMINESCENCE (2021)

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Article Materials Science, Multidisciplinary

Enhancing Efficiency of AlGaN Ultraviolet-B Light-Emitting Diodes with Graded p-AlGaN Hole Injection Layer

Ha Quoc Thang Bui et al.

Summary: A novel UVB LED structure with a hybrid hole injection layer consisting of a p-AlxGa(1-x)N linearly graded layer and a conventional p-AlGaN layer was proposed, showing improved electron confinement and hole injection capability. The new structure significantly reduced electron leakage and increased output power and electroluminescence intensity compared to conventional LEDs.

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE (2021)

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Article Chemistry, Analytical

Improving Color Quality of Nanowire White Light-Emitting Diodes with Mn4+ Doped Fluoride Nanosheets

Thi Hong Quan Vu et al.

Summary: The study on a two-dimensional nanostructured fluoride red-emitting phosphor shows its high quantum yield, excellent red emission properties, and thermal stability, with high color rendering index and correlated color temperature when integrated into nanowire WLEDs.

MICROMACHINES (2021)

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Article Optics