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Title: Programming sp 3 Quantum Defects along Carbon Nanotubes with Halogenated DNA
Atomic defect color centers in solid-state systems hold immense potential to advance various quantum technologies. However, the fabrication of high-quality, densely packed defects presents a significant challenge. Herein we introduce a DNA-programmable photochemical approach for creating organic color-center quantum defects on semiconducting single-walled carbon nanotubes (SWCNTs). Key to this precision defect chemistry is the strategic substitution of thymine with halogenated uracil in DNA strands that are orderly wrapped around the nanotube. Photochemical activation of the reactive uracil initiates the formation of sp3 defects along the nanotube as deep exciton traps, with a pronounced photoluminescence shift from the nanotube band gap emission (by 191 meV for (6,5)-SWCNTs). Furthermore, by altering the DNA spacers, we achieve systematic control over the defect placements along the nanotube. This method, bridging advanced molecular chemistry with quantum materials science, marks a crucial step in crafting quantum defects for critical applications in quantum information science, imaging, and sensing.  more » « less
Award ID(s):
2204202
PAR ID:
10514095
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
ACS
Date Published:
Journal Name:
Journal of the American Chemical Society
Edition / Version:
1
Volume:
146
Issue:
13
ISSN:
0002-7863
Page Range / eLocation ID:
8826 to 8831
Subject(s) / Keyword(s):
Organic Color Center Quantum Defects DNA carbon nanotube spectroscopy
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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