2D V‐V Binary Materials: Status and Challenges

Guo, Shiying; Zhang, Yupeng; Ge, Yanqi; Zhang, Shengli; Zeng, Haibo; Zhang, Han

doi:10.1002/adma.201902352

Cited by 315 publications

(149 citation statements)

References 198 publications

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“…Our device can exhibit sufficiently high sensitivity in visible and near-IR wavelength, and the obtained results are better than that of the most reported photodetectors based on 2D materials, as shown in Table S1 [30,31]. It is also worth mentioning that the properties are also comparable to that of most reported photodetectors based on hybrid perovskite [32][33][34][35].…”

Section: Resultssupporting

confidence: 51%

Multifunctional black phosphorus/MoS₂ van der Waals heterojunction

et al. 2020

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Abstract The fast-developing information technology has imposed an urgent need for effective solutions to overcome the limitations of integration density in chips with smaller size but higher performance. van der Waals heterojunctions built with two-dimensional (2D) semiconductors have been widely studied due to their 2D nature, and their unique electrical and photoelectronic properties are quite attractive in realizing multifunctional devices toward multitask applications. In this work, black phosphorus (BP)/MoS2 heterojunctions have been used to build electronic devices with various functionalities. A p-n diode is achieved based on the vertically stacked BP/MoS2 heterojunction exhibiting an ideal factor of 1.59, whereas a laterally stacked BP/MoS2 heterojunction is implemented to fabricate a photodetector that shows a photodetection responsivity of 2000 mA/W at a wavelength of 1300 nm. Furthermore, a ternary inverter has been realized using a BP field-effect transistor in-series with a lateral BP/MoS2 heterojunction. Such results have unambiguously demonstrated the superiority of BP/MoS2 heterojunction in realizing multiple functionalities and have offered a new pathway for the design and engineering of future circuitry and device integration based on novel 2D semiconductors.

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Section: Resultssupporting

confidence: 51%

Multifunctional black phosphorus/MoS₂ van der Waals heterojunction

et al. 2020

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“…A similar issue also exists for some new monoelemental and ternary materials such as black As, Cr 2 Ge 2 Te 6 , etc. Some strategies such as alloy engineering (B-AsP) [20,21] and allotrope synthesis (Violet phosphorus) [22] have been proposed to resolve the problem. Another possible choice is the formation of vdWs heterostructures encapsulated with h-BN, graphene or surface passivated with a high-k insulator layer such as HfO 2 , Al 2 O 3 , etc.…”

Section: Stabilitymentioning

confidence: 99%

“…However, excellent BP devices have to be covered or sandwiched by hexagonal-nitrile boron (h-BN) due to their poor air stability [19]. Meanwhile, extensive studies on alloy engineering (such as black-arsenic phosphorus [B-AsP]) [20,21], allotrope synthesis (Violet phosphorus) [22] and monoelemental doping (selenium doping-black phosphorus) [23] have been carried out to resolve the problem of high chemical activity exposure to air and to improve optoelectronic applications. Most importantly, more and more predicted stable monoelemental materials with novel physical properties have been experimentally synthesized and studied in recent years.…”

Section: Introductionmentioning

confidence: 99%

Novel two-dimensional monoelemental and ternary materials: growth, physics and application

et al. 2020

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Abstract Two-dimensional (2D) materials have undergone a rapid development toward real applications since the discovery of graphene. At first, graphene is a star material because of the ultrahigh mobility and novel physics, but it always suffered from zero bandgap and limited device application. Then, 2D binary compounds such as transition-metal chalcogenides emerged as complementary materials for graphene due to their sizable bandgap and moderate electrical properties. Recently, research interests have turned to monoelemental and ternary 2D materials. Among them, monoelemental 2D materials such as arsenic (As), antimony (Sb), bismuth (Bi), tellurium (Te), etc., have been the focus. For example, bismuthene can act as a 2D topological insulator with nontrivial topological edge states and high bulk gap, providing the novel platforms to realize the quantum spin-Hall systems. Meanwhile, ternary 2D materials such as Bi2O2Se, BiOX and CrOX (X=Cl, Br, I) have also emerged as promising candidates in optoelectronics and spintronics due to their extraordinary mobility, favorable band structures and intrinsic ferromagnetism with high Curie temperature. In this review, we will discuss the recent works and future prospects on the emerging monoelemental and ternary materials in terms of their structure, growth, physics and device applications.

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“…Besides transition metal dichalcogenides (TMDCs), pulsed fiber lasers have also been demonstrated with layered transition-metal monochalcogenides (TMMCs) [23]. In addition, there is still plenty of room for pentagonal 2D materials and 2D V-V binary materials, which is recently emerged and predicted with superior properties by theoretical calculations [114][115][116][117]. The LD material systems could be further enriched by stacking distinct LD materials into 2D or mixed-dimensional van der Waals heterostructures [118][119][120].…”

Section: Enrich the Materials Options Of Ld Materials In Pulsed Wavegumentioning

confidence: 99%

Low-dimensional materials as saturable absorbers for pulsed waveguide lasers

Pang

et al. 2020

J. Phys. Photonics

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Low-dimensional (LD) materials, such as 2D materials, carbon nanotubes, and nanoparticles, have attracted increasing attention for light modulation in photonics and optoelectronics. The high nonlinearity, broad bandwidth, and fast response enabled by LD materials are critical to realize desired functionalities in highly integrated photonic systems. Driven by the growing demand for compact laser sources, LD materials have recently demonstrated their great capacity as saturable absorbers in pulsed (Q-switched or mode-locked) laser generation in waveguide platforms. We review the recent advances of pulsed waveguide lasers based on LD materials. A perspective is also presented in this rapidly growing research field. Fundamentals of LD saturable absorbers and optical waveguidesOwing to the diverse electronic structures, LD materials offer versatile options to realize wide applications based on the nonlinear optical response. Currently, semiconductor saturable absorber mirrors (SESAMs) are the most frequently used commercial SAs, processing high damage threshold and prominent stability. However, a variety of LD materials retain a number of advantages to be nonlinear SAs, of which SESAMs © 2020 The Author(s). Published by IOP Publishing Ltd J. Phys. Photonics 2 (2020) 031001 Z Li et al cannot fulfill, such as broadband operation, ultrafast recovery time, low cost, and better compatibility with compact devices such as fibers and waveguides. Recently, an increasing number of research efforts have been made to unfold the nonlinear optical properties as well as its corresponding applications of the emerging LD materials [14][15][16][17][18][19][20][21][22][23]. For semiconducting or semimetallic LD materials, the main mechanism for nonlinear saturable absorption is Pauli blocking. After photoexcitation, non-equilibrium carrier state could be created, in which valence-band electrons can be excited to the conduction band, and a hole can be formed on the valence band. As the increase of the incident light intensity, the photon absorption processes of LD materials experience a transition from linear absorption to saturable absorption. When the light intensity continues increasing and reaches the saturation intensity, the extra photons will no longer be absorbed by the electrons in the valence band, and the transmittance of the SA will not increase but gradually tend to a stable value. For metallic nanoparticles, the dominant mechanism is the LSPR effect arising from the interaction between the electric field of incident light and the surface electrons in the conduction band. The optical nonlinearity could be significantly enhanced while maintaining the ultrafast recovery time. These nonlinear effects are widely used in passively Q-switched or mode-locked lasers. In order to characterize the nonlinear optical properties, femtosecond Z-scan spectroscopy is typically employed by moving the sample along the Z direction through a focused Gaussian beam. The laser intensity can be varied continuously with the maximum at the focal poin...

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2D V‐V Binary Materials: Status and Challenges

Cited by 315 publications

References 198 publications

Multifunctional black phosphorus/MoS₂ van der Waals heterojunction

Multifunctional black phosphorus/MoS₂ van der Waals heterojunction

Novel two-dimensional monoelemental and ternary materials: growth, physics and application

Low-dimensional materials as saturable absorbers for pulsed waveguide lasers

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2D V‐V Binary Materials: Status and Challenges

Cited by 315 publications

References 198 publications

Multifunctional black phosphorus/MoS2 van der Waals heterojunction

Multifunctional black phosphorus/MoS2 van der Waals heterojunction

Novel two-dimensional monoelemental and ternary materials: growth, physics and application

Low-dimensional materials as saturable absorbers for pulsed waveguide lasers

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Product

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Multifunctional black phosphorus/MoS₂ van der Waals heterojunction

Multifunctional black phosphorus/MoS₂ van der Waals heterojunction