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Electrically driven single quantum dot emitter operating at room temperature
| Content Provider | Semantic Scholar |
|---|---|
| Author | Arians, Robert Gust, A. Kuemmell, Tilmar Kruse, Chr. Zaitsev, Sergei V. Bacher, Gerd Hommel, D. Günter |
| Copyright Year | 2008 |
| Abstract | We present both optically and electrically driven room temperature emission from single CdSe quantum dots, realized by self-organized epitaxial growth. A structure design that embeds the CdSe quantum dots into ZnSSe/MgS barriers results in high carrier confinement and exceptionally large quantum efficiencies at room temperature. Microphotoluminescence with a spatial resolution of 200 nm exhibits single dot emission that remains visible up to 300 K. When integrating these quantum dots into p-i-n diode structures, an electrically driven single dot emitter with pronounced room temperature emission is realized. The linewidth of the single dot emission increases with temperature due to exciton-phonon interaction and reaches 26 meV at 300 K. This value is only slightly larger than the biexcitonic binding energy, opening a way to solid state single photon emitters operating at elevated temperatures. |
| Starting Page | 67 |
| Ending Page | 78 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/978-3-540-85859-1_6 |
| Volume Number | 93 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/978-3-540-85859-1_6 |
| Alternate Webpage(s) | https://doi.org/10.1007/978-3-540-85859-1_6 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
