New symmetric families of silicon quantum dots and their conglomerates as a tunable source of photoluminescence in nanodevices
| dc.creator | Avramov, Pavel V. | |
| dc.creator | Fedorov, Dmitri G. | |
| dc.creator | Sorokin, Pavel B. | |
| dc.creator | Chernozatonskii, Leonid A. | |
| dc.creator | Gordon, Mark S. | |
| dc.date | 2007-09-14 | |
| dc.date.accessioned | 2026-07-07T08:29:40Z | |
| dc.date.available | 2026-07-07T08:29:40Z | |
| dc.description | We propose a new variety of silicon quantum dots containing fullerene-derived hollows of nearly arbitrary symmetry. Conglomerate structures are designed by connecting the quantum dots through two kinds of junctions. The quantum confinement effect is investigated using semiempirical quantum-mechanical method. It is shown that within each family of quantum dots, the band gap and the stability are inversely proportional to the particle effective size. Quantum dots inherit a wide variety of structural and symmetry properties from their parent fullerenes. The conglomerates confine electrons like quasi-molecules with a peculiar electronic structure related to the junctions. Quantum dots and their conglomerates can host guest atoms in their hollows and therefore present a new promising type of tunable photoluminescent nanomaterials. | |
| dc.description | 19 pages, 3 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/0709.2279 | |
| dc.identifier | http://arxiv.org/abs/0709.2279 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/138015 | |
| dc.subject | Materials Science | |
| dc.title | New symmetric families of silicon quantum dots and their conglomerates as a tunable source of photoluminescence in nanodevices | |
| dc.type | text |