Commensurate Assembly of C 60 on Black Phosphorus for Mixed‐Dimensional van der Waals Transistors

Wang

et al. 2022

Adv Funct Materials

2D materials possess superior optoelectronic properties, such as ultrahigh mobility and broadband photoresponse, making them one of the most vital platforms for diversified photodetectors. However, atomic thickness 2D materials usually suffer from intrinsic low absorption. To promote the photo detector performance, a feasible method is to integrate the 2D materials with lowcost, flexible, and tunable organics that form a charge transfer (CT) heterojunction. As results, indepth multifunctional CT 2Dinorganic/organic detector exhibits extended functions such as lowpower consumption, in memory detection, and opticalbio synapse to meet the demand of contem porary photonic cell. Particularly, the progresses in waferscale monocrystal of both 2D and organic materials render vast potential applications with operation frequencies ranging from ultraviolet to terahertz. Here, the recent advances of 2Dinorganic/organic CT photodetectors are comprehensively reviewed by several classifications. Future developments and applications in optical biology, synapsis, and machine vision are also highlighted.

Section: Dualct Interfaces In 2d Inorganic/organicmentioning

confidence: 97%

“…g) The scheme of graphite/C 60 /b-P barrister. [135] h) The dark and light output currents of graphite/C 60 /b-P barrister. [135] Reproduced with permission.…”

Section: Schottky Junction Integrated With Bhj and Phj In Planar Stru...mentioning

confidence: 99%

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Recent Progress in 2D Inorganic/Organic Charge Transfer Heterojunction Photodetectors

Wang

et al. 2022

Adv Funct Materials

“…2e and f show that the exfoliated BP flakes are about 1.3-1.75 nm in thickness, assigned to two to three layers of P atoms because the thickness of monolayer phosphorene is considered 0.62 nm. [55][56][57][58][59]…”

Section: Liquid-phase Exfoliation Of Few-layered Bp Flakesmentioning

confidence: 99%

A sticky, thermal tolerant, tough BP@PVP ionogel for epidermal sensors

et al. 2023

“…Its physical properties strongly depend on its crystal lattice direction. Phosphorene exhibits strong anisotropic in-plane charge transport behavior and one-dimensional diffusion on its surface. ,− Although ZZ terminations are the predominant configurations in phosphorene, − its edges have not been observed at the atomic level to a significant degree. In particular, it is difficult to image phosphorene edges because they are degraded by ambient exposure and unintended alterations to them during characterization.…”

Section: Introductionmentioning

confidence: 99%

Atomically Sharp, Closed Bilayer Phosphorene Edges by Self-Passivation

Lee

Ding

et al. 2022

ACS Nano

Self Cite

Two-dimensional (2D) crystals' edge structures not only influence their overall properties but also dictate their formation due to edge-mediated synthesis and etching processes. Edges must be carefully examined because they often display complex, unexpected features at the atomic scale, such as reconstruction, functionalization, and uncontrolled contamination. Here, we examine atomic-scale edge structures and uncover reconstruction behavior in bilayer phosphorene. We use in situ transmission electron microscopy (TEM) of phosphorene/graphene specimens at elevated temperatures to minimize surface contamination and reduce e-beam damage, allowing us to observe intrinsic edge configurations. Bilayer zigzag (ZZ) edge was found the most stable edge configuration under e-beam irradiation. Through first-principles calculations and TEM image analysis under various tilting and defocus conditions, we find that bilayer ZZ edges undergo edge reconstruction and so acquire closed, self-passivated edge configurations. The extremely low formation energy of the closed bilayer ZZ edge and its high stability against e-beam irradiation are confirmed by first-principles calculations. Moreover, we fabricate bilayer phosphorene nanoribbons with atomically-sharp closed ZZ edges. The identified bilayer ZZ edges will aid in the fundamental understanding of the synthesis, degradation, reconstruction, and applications of phosphorene and related structures.