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There is a growing interest in obtaining high quality monolayer transition metal disulfides (TMDSs) for optoelectronic device applications. Surface chemical treatments using a range of chemicals on monolayer TMDSs have proven effective to…

Based on extensive first principle calculations, we explore the thickness dependent effective di- electric constant and slab polarizability of few layer black phosphorene. We find that the dielectric constant in ultra-thin phosphorene is…

Mesoscale and Nanoscale Physics · Physics 2016-06-08 Piyush Kumar , B. S. Bhadoria , Sanjay Kumar , Somnath Bhowmick , Yogesh Singh Chauhan , Amit Agarwal

Hybrid materials, containing a 2D filler embedded in a polymeric matrix, are an interesting platform for several applications, because of the variety of properties that the filler can impart to the polymer matrix when dispersed at the…

We report the results of density functional theory (DFT) based calculations on monolayer and bilayer green phosphorene and their heterostructures with MoSe2. Both monolayer and bilayer green phosphorene are direct band gap semiconductors…

Materials Science · Physics 2018-11-26 Sumandeep Kaur , Ashok Kumar , Sunita Srivastava , K. Tankeshwar , Ravindra Pandey

The use of two truly two-dimensional gapless semiconductors, monolayer and bilayer graphene, as current-carrying components in field-effect transistors (FET) gives access to new types of nanoelectronic devices. Here, we report on the…

Mesoscale and Nanoscale Physics · Physics 2009-03-09 H. Schmidt , T. Luedtke , P. Barthold , E. McCann , V. I. Falko , R. J. Haug

In this work, an evaluation of the contact quality of black phosphorus (BP) field-effect transistors (FETs) from different technologies previously reported is performed by means of an efficient and reliable contact resistance extraction…

Mesoscale and Nanoscale Physics · Physics 2020-10-23 Leslie M. Valdez-Sandoval , Eloy Ramirez-Garcia , David Jiménez , Anibal Pacheco-Sanchez

We demonstrate the tunability of the photoluminescence (PL) properties of monolayer (1L)-MoS2 via chemical doping. The PL intensity of 1L-MoS2 was drastically enhanced by the adsorption of p-type dopants with high electron affinity, but…

Materials Science · Physics 2015-06-16 Shinichiro Mouri , Yuhei Miyauchi , Kazunari Matsuda

We study collective plasmon excitations and screening of disordered single- and bilayer black phosphorus beyond the low energy continuum approximation. The dynamical polarizability of phosphorene is computed using a tight-binding model that…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 Fengping Jin , Rafael Roldán , Mikhail I. Katsnelson , Shengjun Yuan

Black phosphorus is not stable when it is exposed to air. When covered or terminated by single layer carbon atoms, such as graphene carbon nanotube, it is more strongly protected in the rapid degradation than the bare black phosphorus.…

Materials Science · Physics 2017-05-24 Kun Cai , Jing Wan , Likui Yang , Ning Wei

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

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…

Black phosphorus stands out from the family of two-dimensional materials as a semiconductor with a direct, layer-dependent bandgap in energy corresponding to the spectral range from the visible to the mid-infrared (mid-IR), as well as many…

Optics · Physics 2017-10-10 Ruoming Peng , Kaveh Khaliji , Nathan Youngblood , Roberto Grassi , Tony Low , Mo Li

Optical devices capable of suppressing diffraction nature of light are of great technological importance to many nanophotonic applications. One important technique to achieve diffractionless optics is to exploit field canalization effect.…

Optics · Physics 2021-12-16 Po-Han Chang , Charles Lin , Amr S. Helmy

The detachment of a semi-ordered monolayer of polystyrene microspheres adhered to an aluminum-coated glass substrate is studied using a laser-induced spallation technique. The microsphere-substrate adhesion force is estimated from substrate…

Mesoscale and Nanoscale Physics · Physics 2016-03-22 Morgan Hiraiwa , Melicent Stossel , Amey Khanolkar , Junlan Wang , Nicholas Boechler

The objective of this work is to study the effects of charge redistribution, applied layer-normal electric fields, applied strain, and layer engineering on the band alignment of Black Phosphorus (BP)/Molybdenum disulphide (MoS2)…

Materials Science · Physics 2022-12-28 Nupur Navlakha , Priyamvada Jadaun , Leonard F. Register , Sanjay K. Banerjee

The chemical activity of ionized hydrogen describes the potency of protons in solution and is used to define the pH with wide-ranging applications in biological and materials sciences. Measuring pH with graphene field-effect transistors…

Applied Physics · Physics 2022-10-26 Nicholas E. Fuhr , Mohamed Azize , David J. Bishop

The adsorption of highly \textit{oppositely} charged flexible polyelectrolytes onto a charged spherical surface is investigated by means of Monte Carlo simulations in a fashion which resembles the layer-by-layer deposition technique…

Soft Condensed Matter · Physics 2007-05-23 Rene Messina , Christian Holm , Kurt Kremer

Low-dimensional materials synthesis based on phosphorus atoms is under intense study, and it is still one of the big challenges. Phosphorene, a monolayer of black phosphorus, is one of the most promising candidates for transistor and…

Materials Science · Physics 2023-01-18 B. D. Tchoffo , I. Benabdallah , A. Aberda , P. Neugebauer , A. Belhboub , A. El Fatimy

Bulk black phosphorus (BP) consists of puckered layers of phosphorus atoms. Few-layer BP, obtained from bulk BP by exfoliation, is an emerging candidate as a channel material in post-silicon electronics. A deep understanding of its physical…

Black phosphorous (BP) is is recently unveiled as a promising two-dimensional direct bandgap semiconducting material. Here, we report the ambipolar field effect transistor behavior of multilayers of BP with ferromagnetic tunnel contacts. We…

Mesoscale and Nanoscale Physics · Physics 2014-07-07 M. Venkata Kamalakar , B. N Madhushankar , André Dankert , Saroj P. Dash
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