The Role of Liquid Ink Transport in the Direct Placement of Quantum Dot Emitters onto Sub-Micrometer Antennas by Dip-Pen Nanolithography
Dawood, Farah; Wang, Jun; Schulze, Peter A; Sheehan, Chris J; Buck, Matthew R; Dennis, Allison M; Majumder, Somak; Krishnamurthy, Sachi; Ticknor, Matthew; Staude, Isabelle; Brener, Igal
Dip-pen nanolithography (DPN) is used to precisely position core/thick-shell (“giant”) quantum dots (gQDs; ≥10 nm in diameter) exclusively on top of silicon nanodisk antennas (≈500 nm diameter pillars with a height of ≈200 nm), resulting in periodic arrays of hybrid nanostructures and demonstrating a facile integration strategy toward next-generation quantum light sources. A three-step reading-inking-writing approach is employed, where atomic force microscopy (AFM) images of the pre-patterned...[Show more]
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