Anisotropic Angstrom-Wide Conductive Channels in Black Phosphorus by Top-down Cu Intercalation

Lee, Suk Woo; Qiu, Lu; Yoon, Jong Chan; Kim, Young S.; Li, Da; Oh, Inseon; Lee, Gil‐Ho; Yoo, Jung‐Woo; Shin, Hyung‐Joon; Ding, Feng; Lee, Zonghoon

doi:10.1021/acs.nanolett.1c00915

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…As the previous studies reported, the copper atoms were successfully inserted into the lattice of the BP. [42,43] Since the cRP NRs has larger crystal plane distance, the inter calation of copper is more smoothly. After the intercalation, the inserted metal atoms are reacted with the phosphorus and are finally transformed into the metal phosphides.…”

Section: Resultsmentioning

confidence: 99%

Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors

Liu

et al. 2021

Adv Funct Materials

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Metal phosphide nanoribbons are suitable building blocks for flexible photoelectronic microdevices due to the special electronic structure, large contact area, and excellent mechanical properties. In this work, single‐crystal copper phosphide nanoribbons (Cu3P NRs) are prepared topochemically from crystalline red phosphorus nanoribbons (cRP NRs) to retain the cRP morphology. The Cu3P NRs are used to construct flexible photoelectronic memristors on the ITO/PEN substrate with the native oxidized shell of Cu3P NRs serving as the charge trapping layer to modulate the resistance switching characteristics. The Cu3P NRs‐based memristors have outstanding nonvolatile memory properties in different mechanical bending states and different bending times. Optically and electrically modulated artificial synaptic functions are observed from the Cu3P NRs‐based memristors and owing to the memory backtracking function, pattern recognition is achieved with the Ag/Cu3P/ITO artificial synapse array. The topochemical synthesis method constitutes a universal approach to produce nanostructured compounds with an unusual morphology and specific crystalline orientation. The results also reveal that metal phosphides are excellent materials in memristors for future optoelectronic neuromorphic computing.

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Section: Resultsmentioning

confidence: 99%

Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors

Liu

et al. 2021

Adv Funct Materials

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“…Nerl et al proposed a novel way to control seed Cu atoms in BP surface using a standard e-beam lithography technique, which can be readily scaled in the semiconductor industry. 33,83 Through TEM imaging of the structures grown in multi-layered BP, all Cu atoms occurred along the [010] direction without any other growth direction observed, which strongly illustrates the growth of Cu in the template of the BP lattice. The addition of the unique chiral dimensionality and metallic nature of the Cu layers into BP to form novel nanohybrids material may endow BP with a range of potential applications in nanosensors, nanocatalysis and plasmonics.…”

Section: Bp-based Nanohybridsmentioning

confidence: 97%

Black phosphorus-based nanohybrids for energy storage, catalysis, sensors, electronic/photonic devices, and tribological applications

Fan

Cao

et al. 2022

J. Mater. Chem. C

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“…Usually, due to the small atomic size, the alkali ion is chosen as the guest species for intercalation, which can significantly change the carrier density and even induce a crystal structure transition, hence affecting the material properties. Studies showed that interaction is orientation dependent for anisotropic materials, e.g., intercalated ions have a more favorable channel along ZZ direction in BP [193,194] . While due to the high reactivity of an alkali ion, the intercalated materials are unstable under an ambient condition.…”

Section: Alloying and Intercalationmentioning

confidence: 99%

Optical properties and polaritons of low symmetry 2D materials

et al. 2023

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Low symmetry 2D materials with intrinsic in-plane anisotropic optical properties and high tunability provide a promising platform to explore and manipulate light-matter interactions. To date, dozens of in-plane anisotropic 2D materials with diverse band structures have been discovered. They exhibit rich optical properties, indicating great potential for novel applications in optics, photonics, and optoelectronics. In this paper, we thoroughly review the anisotropic optical properties and polaritons in many kinds of low symmetry 2D materials, aiming to elicit more research interest in this field. First, the optical properties of anisotropic 2D semiconductors, including interband absorption, photoluminescence, excitons, and band structure engineering for tuning optical responses, are introduced. Then fundamentals and advances in experiments of hyperbolic polaritons in anisotropic 2D materials, including phonon, plasmon, and exciton polaritons, are discussed. Finally, a perspective on promising research directions is given.

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Anisotropic Angstrom-Wide Conductive Channels in Black Phosphorus by Top-down Cu Intercalation

Cited by 11 publications

References 33 publications

Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors

Topochemical Synthesis of Copper Phosphide Nanoribbons for Flexible Optoelectronic Memristors

Black phosphorus-based nanohybrids for energy storage, catalysis, sensors, electronic/photonic devices, and tribological applications

Optical properties and polaritons of low symmetry 2D materials

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