Temperature-Dependent Energy-Level Shifts of Spin Defects in Hexagonal Boron Nitride
نویسندگان
چکیده
Two-dimensional hexagonal boron nitride (hBN) has attracted large attentions as platforms for realizations integrated nanophotonics and collective effort been focused on the spin defect centers. Here, temperature dependence of resonance spectrum in range 5-600 K is investigated. The zero-field splitting (ZFS) parameter D found to decrease monotonicly with increasing can be described by Varshni empirical equation perfectly, while E almost does not change. We systematically study differences among different hBN nanopowders provide an evidence edge effects ODMR VB- defects. Considering proportional relation between reciprocal lattice volume, thermal expansion might dominant reason energy-level shifts. also demonstrate that defects still exist stably at least 600 K. Moreover, we propose a scheme detecting laser intensity using nanopowders, which based obvious its value intensity. Our results are helpful gain insight into properties miniaturized, sensor.
منابع مشابه
Direct Observation of Defects in Hexagonal Boron Nitride Monolayers
1. Department of Materials Science and Engineering, the University of Tennessee, Knoxville, TN 37996, United States 2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States 3. Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, TN 37996, United States 4. Department of Materials Science and Engi...
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ژورنال
عنوان ژورنال: ACS Photonics
سال: 2021
ISSN: ['2330-4022']
DOI: https://doi.org/10.1021/acsphotonics.1c00320