Journal
NANO LETTERS
Volume 10, Issue 11, Pages 4673-4679Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl1029557
Keywords
Quantum dots; deterministic assembly; electroosmotic flow; feedback control
Categories
Funding
- DARPA Defense Science Office [W31P4Q0910013]
- National Science Foundation [ECCS - 0846494]
- Physics Frontier Center at the joint Quantum Institute
- Office of Naval Research Applied Electromagnetics Center
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We demonstrate a technique for the precise immobilization of nanoscale objects at accurate positions on two-dimensional surfaces. We have developed a water-based photoresist that causes nanostructures such as colloidal quantum dots to segregate to a thin layer at surfaces. By combining this material with electroosmotic feedback control, we demonstrate the ability to position selected, individual quantum dots at specific locations and to immobilize them with 130 nm precision via localized UV exposure.
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