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In this paper, we develop an analytic physics-based model to describe current conduction in ultra-thin black phosphorus (BP) field-effect transistors (FETs). The model extends the concept of virtual source charge calculation to capture the…

Applied Physics · Physics 2019-05-22 Elahe Yarmoghaddam , Nazila Haratipour , Steven J. Koester , Shaloo Rakheja

Black phosphorus (BP) stands out from other 2D materials by the wide amplitude of the band-gap energy (Delta(Eg)) that sweeps an optical window from Visible (VIS) to Infrared (IR) wavelengths, depending on the layer thickness. This…

We demonstrate that encapsulation of atomically thin black phosphorus (BP) by hexagonal boron nitride (h-BN) sheets is very effective for minimizing the interface impurities induced during fabrication of BP channel material for quantum…

Mesoscale and Nanoscale Physics · Physics 2016-07-12 Gen Long , Shuigang Xu , Junying Shen , Jianqiang Hou , Zefei Wu , Tianyi Han , Jiangxiazi Lin , Wing Ki Wong , Yuan Cai , Rolf Lortz , Ning Wang

As a high mobility two-dimensional semiconductor with strong structural and electronic anisotropy, atomically thin black phosphorus (BP) provides a new playground for investigating the quantum Hall (QH) effect, including outstanding…

Mesoscale and Nanoscale Physics · Physics 2018-04-18 Jiawei Yang , Son Tran , Jason Wu , Shi Che , Petr Stepanov , Takashi Taniguchi , Kenji Watanabe , Hongwoo Baek , Dmitry Smirnov , Ruoyu Chen , Chun Ning Lau

Black phosphorus is a monoatomic semiconducting layered material that degrades exothermically in the presence of light and ambient contaminants. Its degradation dynamics remain largely unknown. Even before degradation, local-probe studies…

We report on the mechanical properties of few-layer black phosphorus (BP) nanosheets, in high vacuum and as a function of time of exposure to atmospheric conditions [1]. BP flakes with thicknesses ranging from 4 to 30 nm suspended over…

Black phosphorus (BP) is a two-dimensional layered material composed of phosphorus atoms. Recently, it was demonstrated that external perturbations such as an electric field close the band gap in few-layer BP, and can even induce a band…

Mesoscale and Nanoscale Physics · Physics 2019-03-11 Jiho Jang , Seongjin Ahn , Hongki Min

Functionalization of atomically thin nanomaterials enables the tailoring of their chemical, optical, and electronic properties. Exfoliated black phosphorus, a layered two-dimensional semiconductor exhibiting favorable charge carrier…

We review the basic optical, electronic, optoelectronic, thermoelectric and mechanical properties of few-layer black phosphorus (BP), a layered semiconductor that can be exfoliated from bulk BP, the most stable allotrope of phosphorus. The…

Mesoscale and Nanoscale Physics · Physics 2017-10-17 Andrey Chaves , W. Ji , J. Maassen , T. Dumitrica , T. Low

Atomically thin black phosphorus (BP) is a promising two-dimensional material for fabricating electronic and optoelectronic nano-devices with high mobility and tunable bandgap structures. However, the charge-carrier mobility in few-layer…

Black phosphorus (BP) exhibits highly anisotropic properties and dynamical behavior that are unique even among two-dimensional and van der Waals (vdW) layered materials. Here, we show that an interlayer lattice contraction and concerted,…

Mesoscale and Nanoscale Physics · Physics 2022-07-27 Mazhar Chebl , Xing He , Ding-Shyue Yang

We ascertain the anisotropic thermal conductivity of alumina passivated black phosphorus (BP), a reactive 2D nanomaterial with strong in-plane anisotropy. We measure the room temperature thermal conductivity by time-domain thermoreflectance…

Materials Science · Physics 2015-10-02 Hyejin Jang , Joshua D. Wood , Christopher R. Ryder , Mark C. Hersam , David G. Cahill

The electronic structure and functionality of 2D materials is highly sensitive to structural morphology, opening the possibility for manipulating material properties, but also making predictable and reproducible functionality challenging.…

Mesoscale and Nanoscale Physics · Physics 2022-10-26 Prakriti P. Joshi , Ruiyu Li , Joseph L. Spellberg , Liangbo Liang , Sarah B. King

Black phosphorus (BP) offers considerable promise for infrared and visible photonics. Efficient tuning of the bandgap and higher subbands in BP by modulation of the Fermi level or application of vertical electric fields has been previously…

The energy bandgap is an intrinsic character of semiconductors, which largely determines their properties. The ability to continuously and reversibly tune the bandgap of a single device during real time operation is of great importance not…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 Shi-Li Yan , Zhi-Jian Xie , Jian-Hao Chen , Takashi Taniguchi , Kenji Watanabe

Research on black phosphorus (BP) has been experiencing a renaissance over the last few years, after the demonstration that few-layer BP exhibits high carrier mobility and a thickness-dependent band gap. For a long time, bulk BP is also…

Materials Science · Physics 2017-05-02 Renyan Zhang , John Waters , Andre K. Geim , Irina V. Grigorieva

Black phosphorus (BP) is a layered material with anisotropic properties. We study interfaces formed by a pentacene monolayer adsorbed on monolayer BP, a prototypical system for BP surface passivation. We place the pentacene monolayer along…

Materials Science · Physics 2022-12-09 Naseem Ud Din , Zhen-Fei Liu

Black phosphorus (BP) has recently emerged as a promising narrow band gap layered semiconductor with optoelectronic properties that bridge the gap between semi-metallic graphene and wide band gap transition metal dichalcogenides such as…

Ballistic device performance of monolayer black phosphorous (BP) field-effect transistors (FET) is investigated in this work. Due to the anisotropic effect mass of the carriers, the ON-state current is dependent on the transport direction.…

Materials Science · Physics 2014-07-14 Kai-Tak Lam , Zhipeng Dong , Jing Guo

Two-dimensional materials with strong bandstructure anisotropy such as black phosphorus BP have been identified as attractive candidates for logic application due to their potential high carrier velocity and large density-of-states.…

Computational Physics · Physics 2021-10-28 Cedric Klinkert , Sara Fiore , Jonathan Backmann , Youseung Lee , Mathieu Luisier