Quasi-One-Dimensional Fibrous Phosphorus: An Air-Stable Low-Symmetry Semiconductor with High Anisotropy

Area of Science:

• Materials Science
• Condensed Matter Physics
• Nanotechnology

Background:

• Two-dimensional (2D) materials are of interest for optoelectronics but face challenges at the nanoscale due to boundary defects.
• These defects and dimensional approximations affect electron properties, hindering novel electronic device development.
• Focus is shifting towards one-dimensional (1D) semiconductors to circumvent these surface and boundary issues.

Purpose of the Study:

• To introduce and characterize fibrous phosphorus, a quasi-1D layered semiconducting allotrope.
• To investigate its optical and optoelectronic properties, including Raman response and luminescence.
• To assess its potential as a competitive material for future optoelectronic applications.

Main Methods:

• Synthesis and characterization of fibrous phosphorus, a quasi-1D material.
• Measurement of in-plane anisotropic Raman response at room temperature.
• Analysis of excitation and exciton emission properties.

Main Results:

• Fibrous phosphorus exhibits in-plane anisotropic Raman response.
• Room-temperature excitation and exciton emission were observed.
• The material is derived from abundant and non-toxic raw materials.

Conclusions:

• Fibrous phosphorus presents a promising quasi-1D semiconducting material.
• Its unique optical properties and material advantages make it suitable for optoelectronics.
• It offers a competitive alternative to 2D materials, addressing nanoscale challenges.