As a result of the project the new direction related to the synthesis of high-quality semiconductor nanocrystals and fabrication of plasmon-exciton quantum emitters was established in the host institution (Centro de Fisica de Materiales, Donostia – San Sebastian, Spain) for the first time. During the project, new insights about the preservation of the single-photon nature of the quantum emitter emission and the significant acceleration of their radiative recombination were found. Beyond the state of the art, the technique of the on-demand reversible switching of the emission mode of individual semiconductor quantum emitters using plasmonic metasurfaces was developed. This result is very important for the development of (quantum emitter)-based devices. This technique is more versatile for future applications than commonly used methods because the plasmonic metasurface is coupled to an array of quantum emitters, impacting all of them collectively. Moreover, the technique can be applied to a wide range of materials with quantum-emitting properties, making it of great interest to scientists working in diverse photonic areas. The novel technique of the plasmon-induced recovery of the arrays of semiconductor quantum emitters was also developed. This result could be applied to the fabrication of any thin-film (quantum dot)-based coverage by increasing their brightness and overall emission efficiency, which is important not only for quantum technology but also for the QLED fabrication industry.
The results of the study were published in 4 peer-reviewed scientific articles, and 2 conference proceedings, and also one review paper and one research paper are in the process of preparation for submission to peer-reviewed scientific journals. The results were reported on 6 international scientific conferences (including one invited presentation), were used for two invited lectures on academic seminars, and were used in the organization of the scientific workshops (science week workshop Zientzia Astea 2021 and 2022 in Donostia – San Sebastian, and Zientzia Azoka 2022 in Bilbao), and also for other outreach activities including Women in Science Day and school students visits. Using the results the training of the researchers of the host group was performed related to the new synthesis methods as well to the operation of the designed quantum tomography setup. No website has been developed for the project.
