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Information × Registration Number 0219U000026, 0118U006098 , R & D reports Title Highly effective detectors of terahertz radiation on the basis of cadmium-mercury-tellurium of nanostructures. popup.stage_title Head V. Gumenjuk-Sichevska, Registration Date 09-01-2019 Organization Institute of Semiconductor Physics popup.description2 For the development of nanobolometers and field nanotransistors based on the 2D channel, the HgTe QI was injected into the test structures with controlled voltage by a channel of different geometry; Installation in the cabinet and in the cryostat; Volt-ampere characteristics of structures at nitrogen and room temperature were measured and operating modes were determined; The sensitivity of the test structures to THz radiation was investigated. The power is equivalent to the noise of the detector NEP (6x10 -8 V / Hz1 / 2) at a frequency of 140 GHz and is sufficient to develop an active detector THZ range. The parameters of the detector on the HgTe quantum well can be improved by matching the impedances of the quantum well and the antenna, optimizing the composition of the QW and the concentration of the charge nose. The design of a field transistor based on two-layer graphene has been developed. Topological drawings are made. The graphene transistor is an exfoliated layer of graphene, which is located between two hBN layers, controlled by the two gate valves. A series of measurements of the volt-ampere characteristics of the made transistor at room temperature was conducted and the parameters of the transistor were extracted. Based on these studies, requirements for optimization of the structure were created, which would improve the structure parameters. A preliminary series of impulse measurements in the THz band for the investigation of photosensitivity mechanisms was conducted. Product Description popup.authors Вуйчик Микола Вячеславович Голенков Олександр Геннадійович Гуменюк-Сичевська Жанна Віталіївна Лисюк Ігор Олександрович Мележик Євген Олександрович Сизов Федір Федорович Цибрій Зеновія Федорівна Шевчик-Шекера Анна Володимирівна popup.nrat_date 2020-04-02 Close