| Автор | Lytvyn, P M |
| Автор | Mazur, Yu I |
| Автор | Marega, E |
| Автор | Dorogan, V G |
| Автор | Kladko, V P |
| Автор | Slobodian, M V |
| Автор | Strelchuk, V V |
| Автор | Hussein, M L |
| Автор | Ware, M E |
| Автор | Salamo, G J |
| Дата выпуска | 2008-12-17 |
| dc.description | Lateral ordering of InGaAs quantum dots on the GaAs (001) surface has been achieved in earlier reports, resembling an anisotropic pattern. In this work, we present a method of breaking the anisotropy of ordered quantum dots (QDs) by changing the growth environment. We show experimentally that using As<sub>2</sub> molecules instead of As<sub>4</sub> as a background flux is efficient in controlling the diffusion of distant Ga adatoms to make it possible to produce isotropic ordering of InGaAs QDs over GaAs (001). The control of the lateral ordering of QDs under As<sub>2</sub> flux has enabled us to improve their optical properties. Our results are consistent with reported experimental and theoretical data for structure and diffusion on the GaAs surface. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Engineering of 3D self-directed quantum dot ordering in multilayer InGaAs/GaAs nanostructures by means of flux gas composition |
| Тип | paper |
| DOI | 10.1088/0957-4484/19/50/505605 |
| Electronic ISSN | 1361-6528 |
| Print ISSN | 0957-4484 |
| Журнал | Nanotechnology |
| Том | 19 |
| Первая страница | 505605 |
| Последняя страница | 505611 |
| Аффилиация | Lytvyn, P M; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA ; V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, Kiev 03028, Ukraine |
| Аффилиация | Mazur, Yu I; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA |
| Аффилиация | Marega, E; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA ; |
| Аффилиация | Dorogan, V G; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA |
| Аффилиация | Kladko, V P; V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, Kiev 03028, Ukraine |
| Аффилиация | Slobodian, M V; V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, Kiev 03028, Ukraine |
| Аффилиация | Strelchuk, V V; V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, Kiev 03028, Ukraine |
| Аффилиация | Hussein, M L; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA |
| Аффилиация | Ware, M E; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA |
| Аффилиация | Salamo, G J; Department of Physics, University of Arkansas, Fayetteville, AR 72701, USA |
| Выпуск | 50 |
