Search academic texts

Information × 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 popup.stage_title Head Ivakhnenko Sergii Oleksijovych, Доктор технічних наук Registration Date 05-02-2019 Organization V.Bakul Institute for Superhard Materials popup.description2 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 popup.authors Грушко В.І. Лисенко О.Г. Міцкевич Є.І. popup.nrat_date 2020-04-02 Close