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The electronic structure of few-layer(FL) black phosphorus(BP) sensitively depends on the sample thickness, strain and doping. In this paper, we show that it is also vulnerable to air-exposure. The oxidation of BP caused by air-exposure…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Fanjie Wang , Guowei Zhang , Shenyang Huang , Chaoyu Song , Chong Wang , Qiaoxia Xing , Yuchen Lei , Hugen Yan

The current state of the chemical functionalization of three types of single sheet 2D materials, namely, graphene, molybdenum disulfide (MoS2), and black phosphorus (BP) is summarized. Such 2D sheet polymers represent currently an emerging…

Chemical Physics · Physics 2019-03-18 Andreas Hirsch , Frank Hauke

Carbon quantum dots have become attractive in various applications, such as drug delivery, biological sensing, photocatalysis, and solar cells. Among these, pH sensing via luminescence lifetime measurements of surface-functionalised carbon…

Chemical Physics · Physics 2024-06-04 Denise Dilshener , Drew F. Parsons , Johannes Fiedler

Black phosphorus (bP) is the second known elemental allotrope with a layered crystal structure that can be mechanically exfoliated down to atomic layer thickness. We have fabricated bP naked quantum wells in a back-gated field effect…

Mesoscale and Nanoscale Physics · Physics 2015-09-04 V. Tayari , N. Hemsworth , I. Fakih , A. Favron , E. Gaufrès , G. Gervais , R. Martel , T. Szkopek

Black phosphorus is a quasi-two-dimensional layered semiconductor with a narrow direct band gap of 0.3 eV. A giant surface Stark effect can be produced by the potassium doping of black phosphorus, leading to a semiconductor to semimetal…

Materials Science · Physics 2021-07-21 G. Kremer , M. Rumo , C. Yue , A. Pulkkinen , C. W. Nicholson , T. Jaouen , F. O. von Rohr , P. Werner , C. Monney

Although monolayer black phosphorus (BP) or phosphorene has been successfully exfoliated and its optical properties have been explored, most of electrical performance of the devices is demonstrated on few-layer phosphorene and ultra-thin BP…

Materials Science · Physics 2014-11-05 Yuchen Du , Han Liu , Yexin Deng , Peide D. Ye

The tuning black phosphorene properties such as structural, electronic, transport are explored via substitutional C-doped. We employed density functional theory (DFT) calculations in combination with non-equilibrium Green's function (NEGF)…

Materials Science · Physics 2019-12-02 Renan N. Pedrosa , Wanderlã L. Scopel , Rodrigo G. Amorim

We investigate the electronic, the thermal, and the optical properties of BN-codoped MgO monolayers taking into account the interaction effects between the B and the N dopant atoms. The relatively wide indirect band gap of a pure MgO…

We report the quasiparticle band gap, excitons, and highly anisotropic optical responses of few-layer black phosphorous (phosphorene). It is shown that these new materials exhibit unique many-electron effects; the electronic structures are…

Mesoscale and Nanoscale Physics · Physics 2014-06-27 Vy Tran , Ryan Soklaski , Yufeng Liang , Li Yang

This study presents a comprehensive numerical analysis of a quantum-dot-engineered heterostructure, PbS:$Yb^{3+},Er^{3+}$/CuBiO, optimized for water splitting applications. Using density functional theory (DFT) coupled with machine…

We re-adapt a spectral renormalization method, introduced in nonlinear optics, to solve the Kohn-Sham (KS) equations of density functional theory (DFT), with a focus on functionals based on the strictly-correlated electrons (SCE) regime,…

Strongly Correlated Electrons · Physics 2020-04-23 Juri Grossi , Ziad H. Musslimani , Michael Seidl , Paola Gori-Giorgi

This chapter reviews the fundamental optical properties and applications of pho-tonic molecules (PMs) - photonic structures formed by electromagnetic coupling of two or more optical microcavities (photonic atoms). Controllable interaction…

Optics · Physics 2015-03-13 Svetlana V. Boriskina

Perovskite quantum dots (pQDs) are promising materials for optoelectronic and photocatalytic applications due to their unique optical properties. To enhance charge carrier extraction or injection donor/acceptor molecules can be tethered to…

We present density functional theory calculations of phosphorus dopants in bulk silicon and of several properties relating to their use as spin qubits for quantum computation. Rather than a mixed pseudopotential or a Heitler-London…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Loren Greenman , Heather D. Whitley , K. Birgitta Whaley

Spatially structured light fields applied to semiconductor quantum dots yield fundamentally different absorption spectra than homogeneous beams. In this paper, we theoretically discuss the resulting spectra for different light beams using a…

Mesoscale and Nanoscale Physics · Physics 2020-11-04 M. Holtkemper , G. F. Quinteiro , D. E. Reiter , T. Kuhn

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

In this work, we have systematically investigated the structural, electronic, vibrational and optical properties of the edge-functionalized hg-C3N4 quantum dots with the aim of exploring their possible applications in solar cells and other…

Materials Science · Physics 2024-01-26 Khushboo Dange , Vaishali Roondhe , Alok Shukla

Black phosphorus (P), a layered material that can be isolated down to individual 2D crystalline sheets, exhibits highly anisotropic mechanical properties due to its corrugated crystal structure in each atomic layer, which are intriguing for…

Mesoscale and Nanoscale Physics · Physics 2015-04-07 Zenghui Wang , Philip X. -L. Feng

Phosphorene, the 2D material derived from black phosphorus, has recently attracted a lot of interest for its properties, suitable for applications in material science. In particular, the physical features and the prominent chemical…

Two-dimensional crystals are emerging materials for nanoelectronics. Development of the field requires candidate systems with both a high carrier mobility and, in contrast to graphene, a sufficiently large electronic bandgap. Here we…

Materials Science · Physics 2014-07-08 Jingsi Qiao , Xianghua Kong , Zhi-Xin Hu , Feng Yang , Wei Ji
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