Controlled placement of colloidal quantum dots in sub-15 nm clusters
We demonstrated a technique to control the placement of 6 nm-diameter CdSe and 5 nm-diameter CdSe/CdZnS colloidal quantum dots (QDs) through electron-beam lithography. This QD-placement technique resulted in an average of three QDs in each cluster, and 87% of the templated sites were occupied by at...
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| Формат: | Статья |
| Язык: | en_US |
| Опубликовано: |
IOP Publishing
2014
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| Online-ссылка: | http://hdl.handle.net/1721.1/84485 https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0002-9129-4731 https://orcid.org/0000-0001-7453-9031 |
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| author | Han, Hee-Sun Marsili, Francesco Manfrinato, Vitor Riseti Wanger, Darcy Deborah Strasfeld, David B. Arrieta, Jose P. Mentzel, Tamar Bawendi, Moungi G. Berggren, Karl K. |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Han, Hee-Sun Marsili, Francesco Manfrinato, Vitor Riseti Wanger, Darcy Deborah Strasfeld, David B. Arrieta, Jose P. Mentzel, Tamar Bawendi, Moungi G. Berggren, Karl K. |
| author_sort | Han, Hee-Sun |
| collection | MIT |
| description | We demonstrated a technique to control the placement of 6 nm-diameter CdSe and 5 nm-diameter CdSe/CdZnS colloidal quantum dots (QDs) through electron-beam lithography. This QD-placement technique resulted in an average of three QDs in each cluster, and 87% of the templated sites were occupied by at least one QD. These QD clusters could be in close proximity to one another, with a minimum separation of 12 nm. Photoluminescence measurements of the fabricated QD clusters showed intermittent photoluminescence, which indicates that the QDs were optically active after the fabrication process. This optimized top-down lithographic process is a step towards the integration of individual QDs in optoelectronic and nano-optical systems. |
| first_indexed | 2024-09-23T08:18:52Z |
| format | Article |
| id | mit-1721.1/84485 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:18:52Z |
| publishDate | 2014 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/844852022-09-23T12:13:09Z Controlled placement of colloidal quantum dots in sub-15 nm clusters Han, Hee-Sun Marsili, Francesco Manfrinato, Vitor Riseti Wanger, Darcy Deborah Strasfeld, David B. Arrieta, Jose P. Mentzel, Tamar Bawendi, Moungi G. Berggren, Karl K. Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Physics Bawendi, Moungi, G. Manfrinato, Vitor Riseti Wanger, Darcy Deborah Strasfeld, David B. Han, Hee-Sun Marsili, Francesco Arrieta, Jose P. Mentzel, Tamar Bawendi, Moungi G. Berggren, Karl K. We demonstrated a technique to control the placement of 6 nm-diameter CdSe and 5 nm-diameter CdSe/CdZnS colloidal quantum dots (QDs) through electron-beam lithography. This QD-placement technique resulted in an average of three QDs in each cluster, and 87% of the templated sites were occupied by at least one QD. These QD clusters could be in close proximity to one another, with a minimum separation of 12 nm. Photoluminescence measurements of the fabricated QD clusters showed intermittent photoluminescence, which indicates that the QDs were optically active after the fabrication process. This optimized top-down lithographic process is a step towards the integration of individual QDs in optoelectronic and nano-optical systems. Hertz Foundation (Fellowship) United States. Dept. of Energy. Office of Basic Energy Sciences (Award DE-SC0001088) 2014-01-24T15:07:02Z 2014-01-24T15:07:02Z 2013-03 2012-12 Article http://purl.org/eprint/type/JournalArticle 0957-4484 1361-6528 http://hdl.handle.net/1721.1/84485 Manfrinato, Vitor R, Darcy D Wanger, David B Strasfeld, Hee-Sun Han, Francesco Marsili, Jose P Arrieta, Tamar S Mentzel, Moungi G Bawendi, and Karl K Berggren. “Controlled placement of colloidal quantum dots in sub-15 nm clusters.” Nanotechnology 24, no. 12 (March 29, 2013): 125302. https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0002-9129-4731 https://orcid.org/0000-0001-7453-9031 en_US http://dx.doi.org/10.1088/0957-4484/24/12/125302 Nanotechnology Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf IOP Publishing Darcy Wanger |
| spellingShingle | Han, Hee-Sun Marsili, Francesco Manfrinato, Vitor Riseti Wanger, Darcy Deborah Strasfeld, David B. Arrieta, Jose P. Mentzel, Tamar Bawendi, Moungi G. Berggren, Karl K. Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title | Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title_full | Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title_fullStr | Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title_full_unstemmed | Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title_short | Controlled placement of colloidal quantum dots in sub-15 nm clusters |
| title_sort | controlled placement of colloidal quantum dots in sub 15 nm clusters |
| url | http://hdl.handle.net/1721.1/84485 https://orcid.org/0000-0003-2220-4365 https://orcid.org/0000-0002-9129-4731 https://orcid.org/0000-0001-7453-9031 |
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