Loading...
Please wait, while we are loading the content...
Similar Documents
Self-assembly of InAs Quantum Dot Structures on Cleaved Facets
| Content Provider | Semantic Scholar |
|---|---|
| Author | Uccelli, Emanuele Bauer, Jan S. Bichler, Martin Schuh, Dieter Finley, Jonathan J. Abstreiter, Gerhard Morral, Anna Fontcuberta I |
| Copyright Year | 2008 |
| Abstract | Strain induced self-assembled quantum dots (QDs) have been extensively studied inthe past decade. Their unique propertiesaremainly derivedfrom the carrier confine-ment leading to atom-like energy level structure [1]. In this context, QDs are nanos-tructures that are indeed expected to have a great impact in optoelectronic devices.Methodsto controlthe size and thereforethe emission propertieshave been success-fully developed, but the control of the position has shown to be a more difficult task.QDs usually nucleate randomly on a substrate by self-assembly [2], and methodsto control the position are based on inducing a preferential nucleation of the self-organized dots at certain points on a surface. The different approaches range fromthe use of lithographically patterned substrates to vicinal surfaces [3, 4, 5, 6, 7, 8].Alternatively,the Cleaved Edge Overgrowthtechnique has been used for the fab-rication of atomically precise one and zero dimensional quantum structures. In thiscase, the quantum wires (QWRs) and dots are defined by the change in confinementpotentialat the intersectionof oneortwo quantumwells(QWs), respectively[9, 10].In this chapter, we present a different technique to deterministically control theposition of self-assembled InAs QD arrays at the nanometer scale on (110) crystalsurfaces. The methodis a combinationof self-assembly and the Cleaved Edge Over-growth technique. In the first section, the growth technique is introduced. Then, insection 2.3 the results concerning the growth are shown. The optical properties ofthe self-assembled QDs are explained in Section 2.4. Finally, in Section 2.5, futureprospects of the technique are presented. |
| Starting Page | 25 |
| Ending Page | 41 |
| Page Count | 17 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/978-0-387-74191-8_2 |
| Alternate Webpage(s) | http://www.newbooks-services.de/MediaFiles/Texts/7/9781441925527_Excerpt_001.pdf |
| Alternate Webpage(s) | https://www.springer.com/cda/content/document/cda_downloaddocument/9780387741901-c2.pdf?SGWID=0-0-45-461837-p173753622 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/978-0-387-74191-8_2 |
| Alternate Webpage(s) | https://doi.org/10.1007/978-0-387-74191-8_2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
