Niobium Nitride Preparation for Superconducting Single-Photon Detectors

Niobium nitride (NbN) is widely used in the production of superconducting nanowire single-photon detectors (SNSPDs) due to its high superconducting transition temperature and suitable energy gap. The processing parameters used for the preparation of NbN films and the subsequent processing of nanowir...

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Main Authors: Peng Luo, Yihui Zhao
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/17/6200
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author Peng Luo
Yihui Zhao
author_facet Peng Luo
Yihui Zhao
author_sort Peng Luo
collection DOAJ
description Niobium nitride (NbN) is widely used in the production of superconducting nanowire single-photon detectors (SNSPDs) due to its high superconducting transition temperature and suitable energy gap. The processing parameters used for the preparation of NbN films and the subsequent processing of nanowires have a significant effect on the performance of the SNSPD. In this review, we will present various thin film growth methods, including magnetron sputtering, atomic layer deposition (ALD), and chemical vapor deposition (CVD). The relationships between the superconducting performance of each thin film and the corresponding deposition process will be discussed. Subsequently, NbN nanowire fabrication methods and microstructures based on thin film etching will be summarized, and their impact on the qualities of the finished SNSPDs will be systematically analyzed. Finally, we will provide an outlook for the future development of preparation for SNSPD.
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spelling doaj.art-3bc17e2e9a1247f19167857e215bc37d2023-11-19T08:32:41ZengMDPI AGMolecules1420-30492023-08-012817620010.3390/molecules28176200Niobium Nitride Preparation for Superconducting Single-Photon DetectorsPeng Luo0Yihui Zhao1School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaNiobium nitride (NbN) is widely used in the production of superconducting nanowire single-photon detectors (SNSPDs) due to its high superconducting transition temperature and suitable energy gap. The processing parameters used for the preparation of NbN films and the subsequent processing of nanowires have a significant effect on the performance of the SNSPD. In this review, we will present various thin film growth methods, including magnetron sputtering, atomic layer deposition (ALD), and chemical vapor deposition (CVD). The relationships between the superconducting performance of each thin film and the corresponding deposition process will be discussed. Subsequently, NbN nanowire fabrication methods and microstructures based on thin film etching will be summarized, and their impact on the qualities of the finished SNSPDs will be systematically analyzed. Finally, we will provide an outlook for the future development of preparation for SNSPD.https://www.mdpi.com/1420-3049/28/17/6200single-photon detectorsdeposition processessuperconductornanowire
spellingShingle Peng Luo
Yihui Zhao
Niobium Nitride Preparation for Superconducting Single-Photon Detectors
Molecules
single-photon detectors
deposition processes
superconductor
nanowire
title Niobium Nitride Preparation for Superconducting Single-Photon Detectors
title_full Niobium Nitride Preparation for Superconducting Single-Photon Detectors
title_fullStr Niobium Nitride Preparation for Superconducting Single-Photon Detectors
title_full_unstemmed Niobium Nitride Preparation for Superconducting Single-Photon Detectors
title_short Niobium Nitride Preparation for Superconducting Single-Photon Detectors
title_sort niobium nitride preparation for superconducting single photon detectors
topic single-photon detectors
deposition processes
superconductor
nanowire
url https://www.mdpi.com/1420-3049/28/17/6200
work_keys_str_mv AT pengluo niobiumnitridepreparationforsuperconductingsinglephotondetectors
AT yihuizhao niobiumnitridepreparationforsuperconductingsinglephotondetectors