| Description |
Colloidal quantum dots (QDs) have garnered much attention in the recent times due to their attractive spectral properties leading to wide range of potential applications in bioimaging/sensing, display, and telecommunication. The colloidal QDs allow spin-coating based processing, possibility of self-assembly, compatibility with silicon platform and tunability in absorption and emission spectra and have become one of the most attractive nanoscale fluorescent emitters. Here our work on organic-inorganic hybrid photonic devices that allow us to exploit the properties of the two different material systems will be discussed. Specifically recent work on photonic emitters and circuits that utilize colloidal quantum dot composites comprising of the inorganic quantum dots in an organic host matrix as the active medium. Some of the prototype devices that will be discussed include flexible microcavity laser, active micro-resonators integrated with passive waveguides, and quasi-periodic photonic structures. All of the above devices are fabricated using simple spin coating or soft-lithography. In addition to their specific functionalities, these novel device demonstrations and their development present a low cost alternative to the traditional photonic device fabrication techniques.
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