Electron-Beam-Pumped UVC Emitters Based on an (Al,Ga)N Material System.
2D quantum wells
AlGaN group III-nitrides
electron-beam-pumped ultraviolet (UV)C emitters
low dimensional structures
ultraviolet C emission
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
15 Jul 2023
15 Jul 2023
Historique:
received:
20
06
2023
revised:
08
07
2023
accepted:
12
07
2023
medline:
29
7
2023
pubmed:
29
7
2023
entrez:
29
7
2023
Statut:
epublish
Résumé
Powerful emitters of ultraviolet C (UVC) light in the wavelength range of 230-280 nm are necessary for the development of effective and safe optical disinfection technologies, highly sensitive optical spectroscopy and non-line-of-sight optical communication. This review considers UVC emitters with electron-beam pumping of heterostructures with quantum wells in an (Al,Ga)N material system. The important advantages of these emitters are the absence of the critical problem of p-type doping and the possibility of achieving record (up to several tens of watts for peak values) output optical power values in the UVC range. The review consistently considers about a decade of world experience in the implementation of various UV emitters with various types of thermionic, field-emission, and plasma-cathode electron guns (sources) used to excite various designs of active (light-emitting) regions in heterostructures with quantum wells of Al
Identifiants
pubmed: 37513091
pii: nano13142080
doi: 10.3390/nano13142080
pmc: PMC10383474
pii:
doi:
Types de publication
Journal Article
Review
Langues
eng
Subventions
Organisme : Ministry of Science and Higher Education
ID : 075-15-2022-1224
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