Mansour Mortazavi

Study of group III-V waveguides on sapphire platform for photonic integrated circuits

Manoj Shah, Richard A. Soref, Diandian Zhang, Emmanuel Awarikabey et autres

Photonic integrated circuits (PICs) are widely recognized as promising platforms for a range of applications, including data communication, LiDAR for autonomous vehicles, and advanced sensing technologies. While individual optical components have been successfully demonstrated, the integration of both electronic and photonic elements …

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Study of electronic band alignment in SiGeSn/GeSn quantum well via internal photoemission effect

Justin Rudie, Huong Tran, Yang Zhang, Sylvester Amoah et autres

SiGeSn-based optoelectronic devices, which operate across a broad infrared wavelength range, have garnered significant attention. Among these, heterostructures incorporating quantum wells are particularly promising due to their enhanced carrier confinement. In such structures, the type of band alignment and the associated barrier …

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Study of electronic band alignment in SiGeSn/GeSn quantum well via internal photoemission effect

Justin Rudie, Huong Tran, Yang Zhang, Sylvester Amoah et autres

SiGeSn-based optoelectronic devices, which operate across a broad infrared wavelength range, have attracted significant attention, particularly heterostructures utilizing quantum wells are widely utilized. In these structures, band alignment type and barrier height are crucial for carrier confinement, making them highly desirable information …

Halide perovskite-polymer composite film for bright and stable light-emitting devices

Maoding Cheng, Brooke Robinson, Manoj R. Shah, Emad Badradeen et autres

Stability is the primary hindrance for the application of halide perovskite material in light-emitting devices, solar cells, and other devices. In this work, halide perovskite and polymer composite film have been prepared for stable and bright light-emitting devices. Pure-phase Cs 4 PbBr …

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Tuning magnetism in Ising-type van der Waals magnet FePS3 by lithium intercalation

Dinesh Upreti, Rabindra Basnet, M. M. Sharma, Santosh Karki Chhetri et autres

Abstract Recently, layered transition metal thiophosphate MPX 3 (M = transition metals, X = S or Se) have gained significant attention because of their rich magnetic, optical, and electronic properties. Specifically, the diverse magnetic structures and the robustness of magnetism in the …

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Large negative magnetoresistance in antiferromagnetic G d 2 S e 3

Santosh Karki Chhetri, Gokul Acharya, David E Graf, Rabindra Basnet et autres

Rare earth chalcogenides provide a great platform to study exotic quantum phenomena such as superconductivity and charge density waves. Among various interesting properties, the coupling between magnetism and electronic transport has attracted significant attention. Here, we report the investigation of such coupling …

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Medium‐Entropy Engineering of Magnetism in Layered Antiferromagnet CuxNi2(1‐x)CrxP2S6

Dinesh Upreti, Rabindra Basnet, M. M. Sharma, Santosh Karki Chhetri et autres

Abstract Antiferromagnetic van der Waals‐type M2P2X6 compounds provide a versatile material platform for studying 2D magnetism and relevant phenomena. Establishing ferromagnetism in 2D materials is technologically valuable. Though magnetism is generally tunable via a chemical way, it is challenging to induce ferromagnetism …

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Study of Group III-V Waveguides on Sapphire Platform for Photonic Integrated Circuits

Manoj Kumar Shah, Richard A. Soref, Diandian Zhang, Wei Du et autres

Photonic integrated circuits (PICs) have been acknowledged as the promising platforms for the applications in data communication, Lidar in autonomous driving vehicles, innovative sensor technology, etc. Since the demonstration of optical components individually, integration of both electronics and photonics for functional devices …

Förster Resonance Energy Transfer and Enhanced Emission in Cs4PbBr6 Nanocrystals Encapsulated in Silicon Nano-Sheets for Perovskite Light Emitting Diode Applications

Araceli Herrera Mondragon, Roberto González-Rodríguez, Noah Hurley, Sinto Varghese et autres

Encapsulating Cs4PbBr6 quantum dots in silicon nano-sheets not only stabilizes the halide perovskite, but also takes advantage of the nano-sheet for a compatible integration with the traditional silicon semiconductor. Here, we report the preparation of un-passivated Cs4PbBr6 ellipsoidal nanocrystals and pseudo-spherical quantum …

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Halide perovskite and polymer composite film for bright light emitting devices

Maoding Cheng, Brooke Robinson, Manoj R. Shah, Araceli Herrera Mondragon et autres

cn, us, gb (code pays fourni par la source)

Medium-entropy Engineering of magnetism in layered antiferromagnet CuxNi2(1-x)CrxP2S6

Dinesh Upreti, Rabindra Basnet, M. M. Sharma, Santosh Karki Chhetri et autres

Engineering magnetism in layered magnets could result in novel phenomena related to two-dimensional (2D) magnetism, which can be useful for fundamental research and practical applications. Extensive doping efforts such as substitution and intercalation have been adopted to tune antiferromagnetic (AFM) properties in …

Tuning Magnetism in Ising-type van der Waals Magnet FePS3 by Lithium Intercalation

Dinesh Upreti, Rabindra Basnet, M. M. Sharma, Santosh Karki Chhetri et autres

Recently, layered materials transition metal thiophosphate MPX3 (M = transition metals, X = S or Se) have gained significant attention because of their rich magnetic, optical, and electronic properties. Specifically, the diverse magnetic structures and the robustness of magnetism in the two-dimensional …