Registration Number
0219U000533,
0117U006114
, R & D reports
Title
Superior diamond single crystals for the latest quantum technologies and detectors grown by methods of temperature gradient and chemical deposition
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Head
Ivakhnenko Sergii Oleksijovych, Доктор технічних наук
Registration Date
05-02-2019
Organization
V.Bakul Institute for Superhard Materials
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A comparative study of the volt-ampere characteristics and luminescence spectra of synthetic diamond single crystals grown under various technological parameters was carried out. Specimens grown in the Fe-Ni-C system had a yellow color of varying saturation. Samples grown in the Fe-Mg-Al-C system had different degrees of transparency, depending on the concentration of Mg. It is established that in all samples in the spectral region of frequencies 1000 - 1400 cm-1 there is a group of bands connected with oscillatory modes of impurity nitrogen, which is a part of various defects. The study of the volt-ampere characteristics has shown that the minimum leakage currents (about 1.5 pA at 300 V) have synthetic diamonds grown by the temperature gradient method in the growth system of Fe-Ni-C without the addition of nitrogen noders. Such diamonds are most suitable for use in advanced quantum technologies and detectors.
Product Description
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Грушко В.І.
Лисенко О.Г.
Міцкевич Є.І.
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2020-04-02
