Nanowires for Photonics

Quan, Li Na; Kang, Joohoon; Ning, Chao; Yang, Peidong

doi:10.1021/acs.chemrev.9b00240

Cited by 225 publications

(169 citation statements)

References 132 publications

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“…Compared with bulk materials, low-dimensional materials such as nanowires can have different electrical and optical properties, such as the strong confinement of charge carriers and photons associated with the reduced dimensions. Motivated by exploring novel electrical and optical properties at low dimensions as well as new material platforms for future generation electronic and photonic devices, tremendous efforts have been devoted in the past two decades to the study of semiconductor nanowires and their device applications; and remarkable progresses have been made in applying various semiconductor nanowires to light-emitting devices, solar energy conversion devices, transistors, and biosensors [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

Zhao

et al. 2020

Micromachines

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In this paper, we discuss the recent progress made in aluminum gallium nitride (AlGaN) nanowire ultraviolet (UV) light-emitting diodes (LEDs). The AlGaN nanowires used for such LED devices are mainly grown by molecular beam epitaxy (MBE) and metalorganic chemical vapor deposition (MOCVD); and various foreign substrates/templates have been investigated. Devices on Si so far exhibit the best performance, whereas devices on metal and graphene have also been investigated to mitigate various limitations of Si substrate, e.g., the UV light absorption. Moreover, patterned growth techniques have also been developed to grow AlGaN nanowire UV LED structures, in order to address issues with the spontaneously formed nanowires. Furthermore, to reduce the quantum confined Stark effect (QCSE), nonpolar AlGaN nanowire UV LEDs exploiting the nonpolar nanowire sidewalls have been demonstrated. With these recent developments, the prospects, together with the general challenges of AlGaN nanowire UV LEDs, are discussed in the end.

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Section: Introductionmentioning

confidence: 99%

AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

Zhao

et al. 2020

Micromachines

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“…Fabrication of nanoneedles with tunable dimensions, compositions, structures, and properties is the basis for the versatile application of nanoneedles in a broad range of research areas including biological devices, [ 102,103 ] electronic devices, [ 104 ] photonic devices, [ 105,106 ] energy conversion devices, [ 107 ] and magnetic devices. [ 108 ] In general, nanoneedle arrays are prepared based on two fundamental approaches: bottom‐up or top‐down.…”

Section: Fabrication Of Nanoneedle Arrays For Intracellular Applicationsmentioning

confidence: 99%

Nanoneedle Platforms: The Many Ways to Pierce the Cell Membrane

He¹,

Hu²,

et al. 2020

Adv Funct Materials

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Establishing techniques to efficiently and nondestructively access the intracellular milieu is essential for many biomedical and scientific applications, ranging from drug delivery, to electrical recording, to biochemical detection. Cell penetration using nanoneedle arrays is currently a research focus area because it not only meets the increasing therapeutic demands of cell modifications and genome editing, but also provides an ideal platform for tracking long-term intracellular information. Although the precise mechanism driving membrane penetration by nanoneedle arrays is still unclear, the low cytotoxicity, wide range of delivered materials, diverse cell type targets, and simple material structures of nanoneedle arrays make these splendid platforms for cell access. Here, the recent progress in this field is reviewed by examining device architectures and discussing mechanisms for nanoneedle penetration, and the major studies demonstrating the most general applicability of nanoneedle arrays, typical methodologies to access the intracellular environment using nanoneedles with spontaneous or assisted penetration modes, as well as biosafety aspects are presented. This review should be valuable for deeply understanding the materials fabrication principles, device designs, cell penetration methodologies, biosafety aspects, and application strategies of nanoneedle array-based systems that are of crucial importance for the development of future practical biomedical platforms.

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“…The nanowire structure also offers another advantage: it causes light to interact with the nanowire material in a way that is ideal for photonic applications 9,10 . For example, nanowire shape can be engineered to ensure efficient light absorption and to prevent light from being trapped in the nanostructure by internal reflection.…”

Section: Anna Fontcuberta I Morralmentioning

confidence: 99%

Nanostructured alloys light the way to silicon-based photonics

Morral

2020

Nature

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Nanowires for Photonics

Cited by 225 publications

References 132 publications

AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

Nanoneedle Platforms: The Many Ways to Pierce the Cell Membrane

Nanostructured alloys light the way to silicon-based photonics

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