PHOTODIODE BASED ON THE EPITAXIAL PHOSPHIDE GALLIUM WITH INCREASED SENSITIVITY AT A WAVELENGTH OF 254 nm
Yurii Dobrovolsky
y.dobrovolsky@chnu.edu.uaYuriy Fedkovych Chernivtsi National University (Ukraine)
Volodymyr M. Lipka
PJC ”CDB Rhythm”, Chernivtsy (Ukraine)
http://orcid.org/0000-0002-5899-6213
Volodymyr V. Strebezhev
Yuriy Fedkovych Chernivtsi National University (Ukraine)
http://orcid.org/0000-0001-8962-647X
Yurii O. Sorokatyi
Yuriy Fedkovych Chernivtsi National University (Ukraine)
http://orcid.org/0000-0001-9462-775X
Mykola O. Sorokatyi
Yuriy Fedkovych Chernivtsi National University (Ukraine)
http://orcid.org/0000-0001-6602-5698
Olga P. Andreeva
PJC ”CDB Rhythm”, Chernivtsy (Ukraine)
http://orcid.org/0000-0002-9437-1931
Abstract
The paper shows the results of the development of a photodiode technology based on gallium phosphide structure n+-n-GaP-Au with high sensitivity. It provides the ion etching of the surface of the gallium phosphide before an application of a leading electrode of gold. The barrier layer of a 20 nm thick gold is applied to the substrate in the magnetic field of GaP. When forming the contact with the reverse side of the indium substrate at 600°C, there occurs the annealing of the gold barrier layer. At the maximum of the spectral characteristics obtained by the photodiode, it has a sensitivity of 0.13 A/W, and at a wavelength of 254 nm – about 0.06 A/W. The dynamic range of the photodiode is not less than 107.
Keywords:
photodiode, gallium phosphide, sensitive, 254 nm, Schottky barrierReferences
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Authors
Yurii Dobrovolskyy.dobrovolsky@chnu.edu.ua
Yuriy Fedkovych Chernivtsi National University Ukraine
Authors
Volodymyr M. LipkaPJC ”CDB Rhythm”, Chernivtsy Ukraine
http://orcid.org/0000-0002-5899-6213
Authors
Volodymyr V. StrebezhevYuriy Fedkovych Chernivtsi National University Ukraine
http://orcid.org/0000-0001-8962-647X
Authors
Yurii O. SorokatyiYuriy Fedkovych Chernivtsi National University Ukraine
http://orcid.org/0000-0001-9462-775X
Authors
Mykola O. SorokatyiYuriy Fedkovych Chernivtsi National University Ukraine
http://orcid.org/0000-0001-6602-5698
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