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Detection in the structures based on a semiconductor (Bi-Sb)/superconductor (NbN) contacts: optimization for high frequency signal

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dc.contributor.author KERNER, Iacov
dc.date.accessioned 2019-10-24T12:42:51Z
dc.date.available 2019-10-24T12:42:51Z
dc.date.issued 2013
dc.identifier.citation KERNER, Iacov. Detection in the structures based on a semiconductor (Bi-Sb)/superconductor (NbN) contacts: optimization for high frequency signal. In: ICNBME-2013. International Conference on Nanotechnologies and Biomedical Engineering. German-Moldovan Workshop on Novel Nanomaterials for Electronic, Photonic and Biomedical Applications: proc. of the 2th intern. conf., April 18-20, 2013. Chişinău, 2013, pp. 132-134. ISBN 978-9975-62-343-8 en_US
dc.identifier.isbn 978-9975-62-343-8
dc.identifier.uri http://repository.utm.md/handle/5014/5227
dc.description.abstract Diode detectors (DD) are widely used in electronic information and communication systems. In this paper the numerical modeling of the electrical potential distribution and current passing in the contacts of niobium nitride (NbN) with semiconductor alloy bismuth-antimony (Bi-Sb) was made. The optimization for high frequency signal was realised, when the signal frequency is more 10 GHz. There were analyzed possibilities to create the diode detectors based on these contacts and working at temperatures (T) of liquid helium 4.2 K and 1 K. The dependences of the current responsivity (CR), the voltage responsivity (VR) and the noise equivalent power (NEP) on the signal frequency (f) were analyzed. The obtained results were compared with literature data. Both DD working at temperature of liquid nitrogen (T = 77.4 K) and liquid helium were considered. The comparison with existent literature data shows the proposed DD can be 10÷100 times better. The physical reasons of these advantages were discussed. It is shown that unique properties of Bi-Sb alloys and especially of Bi0.88Sb0.12 alloy make these alloys to be the very perspective materials for cryoelectronics en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject structures based en_US
dc.subject semiconductor en_US
dc.subject superconductor en_US
dc.subject frequency signal en_US
dc.title Detection in the structures based on a semiconductor (Bi-Sb)/superconductor (NbN) contacts: optimization for high frequency signal en_US
dc.type Article en_US


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