Ultrafast dense DNA functionalization of quantum dots and rods for scalable 2D array fabrication with nanoscale precision
Name
sciadv.adh8508.pdf
Description
Published version
Size
2.36 MB
Format
Adobe PDF
Checksum (MD5)
eee3a44d9e54c734b2666279e102b8f8
Author(s)
Chen, Chi
Luo, Xin
Kaplan, Alexander EK
Bawendi, Moungi G
Macfarlane, Robert J
Bathe, Mark
Date Issued
August 11, 2023
Journal
Science Advances
Publisher
American Association for the Advancement of Science
Citation
Chi Chen et al. ,Ultrafast dense DNA functionalization of quantum dots and rods for scalable 2D array fabrication with nanoscale precision.Sci. Adv.9, eadh8508 (2023).
Version
Final published version
Abstract
Scalable fabrication of two-dimensional (2D) arrays of quantum dots (QDs) and quantum rods (QRs) with nanoscale precision is required for numerous device applications. However, self-assembly–based fabrication of such arrays using DNA origami typically suffers from low yield due to inefficient QD and QR DNA functionalization. In addition, it is challenging to organize solution-assembled DNA origami arrays on 2D device substrates while maintaining their structural fidelity. Here, we reduced manufacturing time from a few days to a few minutes by preparing high-density DNA-conjugated QDs/QRs from organic solution using a dehydration and rehydration process. We used a surface-assisted large-scale assembly (SALSA) method to construct 2D origami lattices directly on solid substrates to template QD and QR 2D arrays with orientational control, with overall loading yields exceeding 90%. Our fabrication approach enables the scalable, high fidelity manufacturing of 2D addressable QDs and QRs with nanoscale orientational and spacing control for functional 2D photonic devices.
MIT Department
Massachusetts Institute of Technology. Department of Biological Engineering
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
10.1126/sciadv.adh8508
