Relative stability of excitonic complexes in quasi-one-dimensional semiconductors

Abstract

A configuration space approach is developed to uncover generic stability peculiarities for the lowest energy neutral and charged exciton complexes (biexciton and trion) in quasi-one-dimensional semiconductors. Trions are shown to be more stable than biexcitons in strongly confined structures with small reduced electron-hole masses. Biexcitons are more stable in less confined structures with large reduced electron-hole masses. In semiconducting carbon nanotubes, in particular, the trion binding energy is shown to be greater than that of the biexciton by a factor ~1.4 decreasing with diameter, thus revealing the general physical principles that underlie recent experimental observations.

5 pages, 4 figures; revised: fig.1 updated, abstract and text revised, more info added

References in corpus (4)

• Biexciton stability in carbon nanotubes
• Correlation and dimensional effects of trions in carbon nanotubes
• Exciton Gas Compression and Metallic Condensation in a Single Semiconductor Quantum Wire
• Trionic Optical Potential for Electrons in Semiconductors

Cited by in corpus (9)

• Excitonic effects in two-dimensional semiconductors: Path integral Monte Carlo approach
• Gate-voltage induced trions in suspended carbon nanotubes
• Few-body systems in condensed matter physics
• Complexes of dipolar excitons in layered quasi-two-dimensional nanostructures
• Collective Excitations and Optical Response of Ultrathin Carbon Nanotube Films
• Crystal Phases of Charged Interlayer Excitons in van der Waals Heterostructures
• Configuration space method for calculating binding energies of exciton complexes in quasi-1D/2D semiconductors
• Trions and biexcitons in a nanowire
• Anisotropic Photon Emission Enhancement near Carbon Nanotube Metasurfaces