Controlled placement of colloidal quantum dots in sub-15 nm clusters
Name
Quantum_dot_placement_manuscript_Nanotechnology - preprint.pdf
Size
857.23 KB
Format
Adobe PDF
Checksum (MD5)
4a364e5cd4bb4e045a5dbe74fea77cb2
Author(s)
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.
Date Issued
March 2013
Journal
Nanotechnology
Publisher
IOP Publishing
Citation
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.
Version
Original manuscript
Abstract
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.
MIT Department
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
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/0957-4484/24/12/125302
