Photoconductive detection of a hydrogen-related donor in SnO2

Photoconductive detection of a hydrogen-related donor in SnO2

Hydrogen defects in single-crystalline SnO2 are studied by combined photoconductivity and IR absorption spectroscopy. Our results indicate that a defect with an O–H local vibrational mode at 3272 cm−1 (10 K) is a donor with a level less than 300 meV below the conduction band. Annealing experiments d...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied physics letters 2019-04, Vol.114 (15)
Hauptverfasser: Herklotz, F., Chaplygin, I., Lavrov, E. V., Agekyan, V. F.
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Conduction bands
Crystal defects
Infrared spectroscopy
Photoconductivity
Single crystals
Tin dioxide
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Hydrogen defects in single-crystalline SnO2 are studied by combined photoconductivity and IR absorption spectroscopy. Our results indicate that a defect with an O–H local vibrational mode at 3272 cm−1 (10 K) is a donor with a level less than 300 meV below the conduction band. Annealing experiments demonstrate that the defect is stable up to approximately 450 °C and therefore may contribute to persistent n-type conductivity of SnO2.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5088759