This black phosphorus crystal (CAS 7723-14-0) from Ossila is a bulk source material for preparing single-layer or few-layer phosphorene. The sheets are obtained by mechanical or liquid exfoliation. Bulk crystals suit mechanical exfoliation, which yields two-dimensional nanosheets or nanoparticles ranging from multilayer down to a single layer.
Black phosphorus is an orthorhombic, two-dimensional semiconductor. Its bandgap can be adjusted between 0.3 eV and 1.5 eV by changing the number of layers. Unlike transition metal dichalcogenides, it keeps a direct bandgap at every film thickness. Ultrathin black phosphorus structures respond strongly to incident light, which makes them promising for ultra-fast photodetectors working from the ultraviolet to the near-infrared.
The crystals are supplied in purity grades of ≥99.995% and ≥99.999%. They come as individual black crystals in a range of sizes.
- Mechanical or liquid exfoliation of single-layer and few-layer phosphorene sheets.
- Fabrication of 2D semiconductor transistors.
- Development of ultra-fast photodetectors covering ultraviolet to near-infrared wavelengths.
- Research on gas sensors and other sensing devices.
- Studies of next-generation batteries and catalysis.
| Brand | Ossila |
|---|---|
| CAS number | 7723-14-0 |
| Molecular formula | P |
| Purity | ≥99.995% & ≥99.999% |
| Category | — |
| Pack sizes | — |
| Physical form | Individual crystals |
| Storage | — |
- Product code: M2106A1-1EA
- Molecular Weight: 30.97 g/mol
- Bandgap: 0.3 eV ~ 1.5 eV
- Structure: Orthorhombic C
- Electronic Properties: 2D semiconductor
- Melting Point: 416 °C
- Color: Black
—
—