Persistent Photoconductivity in ZnO Nanowires in Different Atmospheres
Joint Authors
Source
Advances in Condensed Matter Physics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-18
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
We investigated the photoconductivity of single ZnO nanowire device as a function of the surrounding atmosphere, considering the comparison between reduced pressure, inert gas environments, and air.
We show that after UV excitation the photocurrent persists for hours, in particular in vacuum, nitrogen, and argon.
In the presence of oxygen, the photodecay rate is initially fast but then becomes considerably slower, resulting in a long persisting photo-conductivity tail.
Our proposed model explains the persistence of the photoconductivity (PPC) in terms of band bending at the surface of the nanowires, which is related to the trapping of electrons from the conduction band.
American Psychological Association (APA)
Cammi, Davide& Ronning, Carsten. 2014. Persistent Photoconductivity in ZnO Nanowires in Different Atmospheres. Advances in Condensed Matter Physics،Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-452662
Modern Language Association (MLA)
Cammi, Davide& Ronning, Carsten. Persistent Photoconductivity in ZnO Nanowires in Different Atmospheres. Advances in Condensed Matter Physics No. 2014 (2014), pp.1-5.
https://search.emarefa.net/detail/BIM-452662
American Medical Association (AMA)
Cammi, Davide& Ronning, Carsten. Persistent Photoconductivity in ZnO Nanowires in Different Atmospheres. Advances in Condensed Matter Physics. 2014. Vol. 2014, no. 2014, pp.1-5.
https://search.emarefa.net/detail/BIM-452662
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-452662