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Zinc Selenide-Based Schottky Barrier Detectors for Ultraviolet-A and Ultraviolet-B Detection
Joint Authors
Karunasiri, G.
Smith, C.
Naydenov, S.
Naval, V.
Ryzhikov, V.
Alves, F.
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-12-02
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Wide-bandgap semiconductors such as zinc selenide (ZnSe) have become popular for ultraviolet (UV) photodetectors due to their broad UV spectral response.
Schottky barrier detectors made of ZnSe in particular have been shown to have both low dark current and high responsivity.
This paper presents the results of electrical and optical characterization of UV sensors based on ZnSe/Ni Schottky diodes fabricated using single-crystal ZnSe substrate with integrated UV-A (320–400 nm) and UV-B (280–320 nm) filters.
For comparison, characteristics characterization of an unfiltered detector is also included.
The measured photoresponse showed good discrimination between the two spectral bands.
The measured responsivities of the UV-A and UV-B detectors were 50 mA/W and 10 mA/W, respectively.
A detector without a UV filter showed a maximum responsivity of about 110 mA/W at 375 nm wavelength.
The speed of the unfiltered detector was found to be about 300 kHz primarily limited by the RC time constant determined largely by the detector area.
American Psychological Association (APA)
Naval, V.& Smith, C.& Ryzhikov, V.& Naydenov, S.& Alves, F.& Karunasiri, G.. 2010. Zinc Selenide-Based Schottky Barrier Detectors for Ultraviolet-A and Ultraviolet-B Detection. Advances in OptoElectronics،Vol. 2010, no. 2010, pp.1-5.
https://search.emarefa.net/detail/BIM-485693
Modern Language Association (MLA)
Naval, V.…[et al.]. Zinc Selenide-Based Schottky Barrier Detectors for Ultraviolet-A and Ultraviolet-B Detection. Advances in OptoElectronics No. 2010 (2010), pp.1-5.
https://search.emarefa.net/detail/BIM-485693
American Medical Association (AMA)
Naval, V.& Smith, C.& Ryzhikov, V.& Naydenov, S.& Alves, F.& Karunasiri, G.. Zinc Selenide-Based Schottky Barrier Detectors for Ultraviolet-A and Ultraviolet-B Detection. Advances in OptoElectronics. 2010. Vol. 2010, no. 2010, pp.1-5.
https://search.emarefa.net/detail/BIM-485693
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-485693