{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["12(7)"],"submitter":["Shen Z"],"pubmed_abstract":["Vacuum diodes, based on field emission mechanisms, demonstrate a superior performance in high-temperature operations compared to solid-state devices. However, when considering low operating voltage and continuous miniaturization, the cathode is usually made into a tip structure and the gap between cathode and anode is reduced to a nanoscale. This greatly increases the difficulty of preparation and makes it difficult to ensure fabrication consistency. Here, a metal-insulator-semiconductor (MIS) structural nanoscale vacuum diode, based on thermionic emission, was numerically studied. The results indicate that this device can operate at a stable level in a wide range of temperatures, at around 600 degrees Kelvin above 260 K at 0.2 V voltage bias. Moreover, unlike the conventional vacuum diodes working in field emission regime where the emission current is extremely sensitive to the gap-width between the cathode and the anode, the emission current of the proposed diode shows a weak correlation to the gap-width. These features make this diode a promising alternative to vacuum electronics for large-scale production and harsh environmental applications."],"journal":["Micromachines"],"pagination":["729"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8307793"],"repository":["biostudies-literature"],"pubmed_title":["Nanoscale Vacuum Diode Based on Thermionic Emission for High Temperature Operation."],"pmcid":["PMC8307793"],"pubmed_authors":["Tian J","Shen Z","Wu S","Li Q","Wang X"],"additional_accession":[]},"is_claimable":false,"name":"Nanoscale Vacuum Diode Based on Thermionic Emission for High Temperature Operation.","description":"Vacuum diodes, based on field emission mechanisms, demonstrate a superior performance in high-temperature operations compared to solid-state devices. However, when considering low operating voltage and continuous miniaturization, the cathode is usually made into a tip structure and the gap between cathode and anode is reduced to a nanoscale. This greatly increases the difficulty of preparation and makes it difficult to ensure fabrication consistency. Here, a metal-insulator-semiconductor (MIS) structural nanoscale vacuum diode, based on thermionic emission, was numerically studied. The results indicate that this device can operate at a stable level in a wide range of temperatures, at around 600 degrees Kelvin above 260 K at 0.2 V voltage bias. Moreover, unlike the conventional vacuum diodes working in field emission regime where the emission current is extremely sensitive to the gap-width between the cathode and the anode, the emission current of the proposed diode shows a weak correlation to the gap-width. These features make this diode a promising alternative to vacuum electronics for large-scale production and harsh environmental applications.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Jun","modification":"2024-11-08T22:39:30.722Z","creation":"2022-02-10T22:42:25.958Z"},"accession":"S-EPMC8307793","cross_references":{"pubmed":["34206192"],"doi":["10.3390/mi12070729"]}}