2014/05/31 by Igor V. Bondarev, I. V. Bondarev · 18 citations
Materials Science · Physics and Astronomy · #Atomic physics #Biexciton #Binding energy #Condensed matter physics #Electron #Exciton #Graphene research and applications #Materials science #Mechanical and Optical Resonators #Physics #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor #Space (punctuation) #Stability (learning theory) #Trion #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.90.245430
published in Physical Review B 90(24) (American Physical Society) · 5 pages, 4 figures; revised: fig.1 updated, abstract and text revised, more info added
arxiv created 2014/08/03 · openalex publication_date 2014/12/24 · arxiv updated 2015/12/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 of \ensuremath∼1.4, decreasing with diameter, thus revealing the general physical principles that underlie recent experimental observations.