title: Large ordered arrays of single photon sources based on II-VI semiconductor colloidal quantum dot.
abstract: 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.
authors.affiliation: Division of Engineering, Brown University, Providence, Rhode Island 02912, USA.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zhang
authors.forename: Cuong
authors.initials: C
authors.lastname: Dang
authors.forename: Hayato
authors.initials: H
authors.lastname: Urabe
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Shouheng
authors.initials: S
authors.lastname: Sun
authors.forename: Arto
authors.initials: A
authors.lastname: Nurmikko