black phosphorus structure

A NO2 sensor has been demonstrated with a sensitivity of 20 parts per billion in air [25]. of the whole article in a thesis or dissertation. Black phosphorus is the most stable form; the atoms are linked together in puckered sheets, like graphite. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch. Corresponding authors, a You can now. Black phosphorus quantum dots are normally created from black phosphorus powder via liquid-phase exfoliation. When separated, the resulting monolayer (or few-layer) material is known as phosphorene. Black phosphorus is flaky, with a metallic, graphite-like appearance. Ahamed, Mohd Imran (et al.) Among two-dimensional materials, phosphorene emerged as a strong competitor to graphene … With thicker samples having a bandgap smaller than that of silicon, it could be used to harvest the NIR-IR region of the solar spectrum that silicon cannot access. While the observed external quantum efficiencies observed so far are small (<1%), it has been predicted that a modified phosphorene structure could reach efficiencies of 20% [24]. It is sometimes classed as a subset of red phosphorus. Phosphorene monolayers and multilayers can be produced from bulk black phosphorus through either mechanical (scotch-tape method) or liquid exfoliation. Thermal conductivity is again below that of graphene, but competitive with TMDCs. Understanding the chemistry of BP can substantially help in the development of BP-based practical devices. Black phosphorus bridges the properties of graphene-like materials and transition metal dichalcogenides (TMDCs) and is set to be the next big thing in 2D optoelectronics. Some recent theoretical work suggests that monolayers of violet phosphorus could exhibit a larger direct bandgap than black phosphorus with good charge carrier mobility [2]. Nanotech., 9 (5), 330 (2014). The structure of black phosphorus naturally makes channels to let lithium in. Note: material may have been edited for length and content. Black phosphorus powder is often used in the preparation of black phosphorus quantum dots, normally via liquid-phase exfoliation. When separated, the resulting monolayer (or few-layer) material is known as phosphorene. Make sure your lab is fully equipped and stock up on high-quality materials, accessories, and consumables with our large order discounts. Black phosphorus is a semiconductor with a band gap of ~0.3 eV. Save 8% on orders over £8,000 and 10% on orders over £10,000. Of particular interest is its single-layer structure, called phosphorene. Soc. Amorphous structure of covalently-bonded P atoms, Crystalline pentagonal nanotubes of covalently bonded P atoms, Van der Waals bonded layers of P atoms covalently bonded in a puckered honeycomb structure, Heating of phosphate rock with carbon and silica to ~1200°C, Heating of white phosphorus to ~300°C in an air-free environment, Heating and cooling of white phosphorus dissolved in lead, or heating of red phosphorus in a sealed tube, Heating of white phosphorus to ~200°C at 1.2GPa, or from red phosphorus at 8.5GPa, Will auto-ignite when exposed to air at ~30°C. XX is the XXth reference in the list of references. Nitrogen in black phosphorus structure. The individual phosphorene monolayers were first separated and studied in 2014, and research into the black phosphorus’ unique properties and wide range of potential applications has been ongoing since. Wide bandgap insulator. Reproduced material should be attributed as follows: If the material has been adapted instead of reproduced from the original RSC publication Funct. Monolayers may exhibit a direct bandgap larger than black phosphorus, Most stable allotrope of phosphorus. A central aspect of black phosphorus is its in-plane anisotropic structure, shown in Figure 1a. Preview Buy Chapter … formally request permission using Copyright Clearance Center. Isolation and characterization of few-layer black phosphorus, A. Castellanos-Gomez et al., 2D Mater. To explore its full potential and push the limits, research into BP-based novel functional nanostructures (i.e., nanomaterials and nanodevices) by means of hybridization, doping, and functionalization is rapidly expanding. After exfoliation of black phosphorus crystals or powder, black phosphorus typically has the following properties: Few or multi-layer black phosphorus and black phosphorus quantum dots (created via the processing of black phosphorus crystals or powder) are used for a wide range of applications, including: When individual layers of black phosphorus are separated from the bulk crystal through mechanical exfoliation or sonication, the resulting 2D layers of phosphorene have atoms arranged in a puckered honeycomb structure. Depending on environmental conditions and how it is processed, elemental phosphorus can take several forms (allotropes). Electronic properties of bilayer phosphorene quantum dots in the presence of perpendicular electric and magnetic fields, L. Li et al., Phys. Funct. For more information, please see our worldwide shipping page. Gaddam, Sashivinay Kumar (et al.) For more information about the cookies we use, see our privacy policy. Cheng Ji et al. 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