000K utf8 1100 2024$c2024-07-02 1500 eng 2050 urn:nbn:de:gbv:27-dbt-62093-8 2051 10.1021/acsaom.4c00200 3000 Kretzschmar, Tom 3010 Eilenberger, Falk 3010 Kumar, Anand 3010 Ritter, Sebastian 3010 Schmidt, Falko 3010 Vogl, Tobias 4000 Quantitative Investigation of Quantum Emitter Yield in Drop-Casted Hexagonal Boron Nitride Nanoflakes [Kretzschmar, Tom] 4060 9 Seiten 4209 Single photon emitters (SPEs) are a key component for their use as pure photon source in quantum technologies. In this study, we investigate the generation of SPEs from drop-casted hexagonal boron nitride (hBN) nanoflakes, examining the influence of the immersion solution and the source of hBN. We show that, depending on the utilized supplier and solution, the number and quality of the emitters change. We perform a comprehensive optical characterization of the deposited nanoflakes to assess the quality of the generated SPEs. Importantly, we provide quantitative data on SPE yields, highlighting significant variations among solvents and different sources of hBN. We find that hBN from Merck drop-casted in acetone provided the best quality emitters with a g (2) < 0.1 and photoluminescence intensities above 300 kCounts/s. Their number of SPEs among all photon emitters was also the highest, with about 14%, rendering a total yield of about 1.25% of all drop-casted flakes. These numbers hold particular significance when evaluating drop-casting as a practical method for the generation of SPEs and their deposition and incorporation within existing nanophotonic systems. By choosing appropriate solvents and source materials' quality and yield of SPEs can be significantly increased, showcasing further optimization potential for the development of future quantum applications. 4950 https://doi.org/10.1021/acsaom.4c00200$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:gbv:27-dbt-62093-8$xR$3Volltext$534 4961 https://www.db-thueringen.de/receive/dbt_mods_00062093 5051 530 5550 Drop-Casting 5550 FluorescentDefects 5550 Hexagonal Boron Nitride 5550 Quantum Technologies 5550 Single-Photon Emitters