Positioning of single quantum dots on nanoscale areas of metal-free substrates (presentation video)

Isabelle Staude; Varun K. Sreenivasan; Ivan Shishkin; Kirill Samusev; Manuel Decker; Dragomir N. Neshev; Andrei V. Zvyagin; Yuri S. Kivshar

doi:10.1117/12.2061436

17 August 2014 Positioning of single quantum dots on nanoscale areas of metal-free substrates (presentation video)

Isabelle Staude, Varun K. Sreenivasan, Ivan Shishkin, Kirill Samusev, Manuel Decker, Dragomir N. Neshev, Andrei V. Zvyagin, Yuri S. Kivshar

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Proceedings Volume 9162, Active Photonic Materials VI; 91620E (2014) https://doi.org/10.1117/12.2061436
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

We demonstrate a novel process for selective binding of single semiconductor core-shell quantum dots (QDs) to transparent all-dielectric (glass) substrates with nanoscale resolution. This is accomplished by defining a mask via electron-beam lithography (EBL) followed by functionalization of only the exposed areas of the substrate with a heterobifunctional linker, while applying a binding inhibitor to all other areas. Single QD blinking is clearly observed for several QD functionalized sites. Our approach is compatible with standard two-step EBL nanofabrication schemes and it does not rely on the presence of metals, making it suitable for coupling QDs to all-dielectric nanoresonators.

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Isabelle Staude, Varun K. Sreenivasan, Ivan Shishkin, Kirill Samusev, Manuel Decker, Dragomir N. Neshev, Andrei V. Zvyagin, and Yuri S. Kivshar "Positioning of single quantum dots on nanoscale areas of metal-free substrates (presentation video)", Proc. SPIE 9162, Active Photonic Materials VI, 91620E (17 August 2014); https://doi.org/10.1117/12.2061436

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KEYWORDS

Quantum dots

Video

Electron beam lithography

Glasses

Lithography

Metals

Nanofabrication

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