Current-voltage characteristics of gallium arsenide tunnel p-n junctions irradiated by fast neutrons

1970 ◽  
Vol 13 (3) ◽  
pp. 404-407
Author(s):  
Z. M. Alekseeva ◽  
V. N. Brudnyi ◽  
M. A. Krivov ◽  
S. V. Malyanov ◽  
O. N. Khomchuk
1988 ◽  
Vol 31 (6) ◽  
pp. 1101-1104 ◽  
Author(s):  
L.A. Delimova ◽  
Yu.V. Zhilyaev ◽  
V.Yu. Kachorovsky ◽  
M.E. Levinshtein ◽  
V.V. Rossin

2014 ◽  
Vol 5 ◽  
pp. 1999-2006 ◽  
Author(s):  
Domenico Melisi ◽  
Maria Angela Nitti ◽  
Marco Valentini ◽  
Antonio Valentini ◽  
Teresa Ligonzo ◽  
...  

In this paper, a spray technique is used to perform low temperature deposition of multi-wall carbon nanotubes on semi-insulating gallium arsenide in order to obtain photodectors. A dispersion of nanotube powder in non-polar 1,2-dichloroethane is used as starting material. The morphological properties of the deposited films has been analysed by means of electron microscopy, in scanning and transmission mode. Detectors with different layouts have been prepared and current–voltage characteristics have been recorded in the dark and under irradiation with light in the range from ultraviolet to near infrared. The device spectral efficiency obtained from the electrical characterization is finally reported and an improvement of the photodetector behavior due to the nanotubes is presented and discussed.


2010 ◽  
Vol 18 (3) ◽  
Author(s):  
I.O. Lysiuk ◽  
J.V. Gumenjuk-Sichevska ◽  
S.A. Dvoretsky ◽  
V.S. Varavin

AbstractWe have measured the current-voltage characteristics of the long-wavelength infrared (LWIR) photodiode array, formed on the epitaxial CdxHg1−xTe film (x = 0.21–0.23) with a high concentration of the Shockley-Read-Hall centres, before and after irradiating it with fast neutrons (energy 1 MeV, dose 5×1013 cm−2) at room temperature. Residual changes in current-voltage characteristics, persisting after 20 days, have been identified. Model calculations indicate that the Shockley-Read-Hall centre concentration increases 2–4 times, and the carrier lifetime decreases 2–5 times after the irradiation.


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