Quantitative investigation of quantum emitter yield in drop-casted hexagonal boron nitride nanoflakes


Journal article


Tom Kretzschmar, Sebastian Ritter, Anand Kumar, Tobias Vogl, Falk Eilenberger, Falko Schmidt
ACS Applied Optical Materials, 2024


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APA   Click to copy
Kretzschmar, T., Ritter, S., Kumar, A., Vogl, T., Eilenberger, F., & Schmidt, F. (2024). Quantitative investigation of quantum emitter yield in drop-casted hexagonal boron nitride nanoflakes. ACS Applied Optical Materials. https://doi.org/10.1021/acsaom.4c00200


Chicago/Turabian   Click to copy
Kretzschmar, Tom, Sebastian Ritter, Anand Kumar, Tobias Vogl, Falk Eilenberger, and Falko Schmidt. “Quantitative Investigation of Quantum Emitter Yield in Drop-Casted Hexagonal Boron Nitride Nanoflakes.” ACS Applied Optical Materials (2024).


MLA   Click to copy
Kretzschmar, Tom, et al. “Quantitative Investigation of Quantum Emitter Yield in Drop-Casted Hexagonal Boron Nitride Nanoflakes.” ACS Applied Optical Materials, 2024, doi:10.1021/acsaom.4c00200.


BibTeX   Click to copy

@article{tom2024a,
  title = {Quantitative investigation of quantum emitter yield in drop-casted hexagonal boron nitride nanoflakes},
  year = {2024},
  journal = {ACS Applied Optical Materials},
  doi = {10.1021/acsaom.4c00200},
  author = {Kretzschmar, Tom and Ritter, Sebastian and Kumar, Anand and Vogl, Tobias and Eilenberger, Falk and Schmidt, Falko}
}

Abstract:
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 
Hexagonal Boron Nitride flake assembling on top of a substrate in the presence of a solvent affecting its photoluminescent properties.

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