Large ordered arrays of single photon sources based on II-VI semiconductor colloidal quantum dot

In this paper, we developed a novel and efficient method of deterministically organizing colloidal particles on structured surfaces over macroscopic areas. Our approach utilizes integrated solution-based processes of dielectric encapsulation and electrostatic-force-mediated self-assembly, which allo...

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Bibliographic Details
Published in:Optics express 2008-11, Vol.16 (24), p.19592-19599
Main Authors: Zhang, Qiang, Dang, Cuong, Urabe, Hayato, Wang, Jing, Sun, Shouheng, Nurmikko, Arto
Format: Article
Language:English
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Summary:In this paper, we developed a novel and efficient method of deterministically organizing colloidal particles on structured surfaces over macroscopic areas. Our approach utilizes integrated solution-based processes of dielectric encapsulation and electrostatic-force-mediated self-assembly, which allow precisely controlled placement of sub-10nm sized particles at single particle resolution. As a specific demonstration, motivated by application to single photon sources, highly ordered 2D arrays of single II-VI semiconductor colloidal quantum dots (QDs) were created by this method. Individually, the QDs display triggered single photon emission at room temperature with characteristic photon antibunching statistics, suggesting a pathway to scalable quantum optical radiative systems.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.019592