Low doses effect in GaP light-emitting diodes
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2016, Vol 19, Issue 2
Abstract
The paper is devoted to the electrophysical characteristics study of serial red and green GaP light-emitting diodes (LEDs) irradiated with low α-particles doses (Φ ≤ 1012 cm–2). It was stated that radiation features of p-n-junction and its capacitance change in dependence on temperature. The capacitance grows at 300 K, and drops at 77 K. At the same time, a direct branch of current-voltage characteristics shifts into the lower voltage direction, and appropriative barrier potential reduction value from 6.5 down to 3.5 eV is observed. The effects are caused by radiation defects, charge state of which depends on the Fermi level in GaP. The assumption has been made about high ionization level role in the sulfur impurity transition process into electrically active donor position.
Authors and Affiliations
O. M. Hontaruk, O. V. Konoreva, Ye. V. Malyi, I. V. Petrenko, M. B. Pinkovska, O. I. Radkevych, V. P. Tartachnyk
Keywords
Related Articles
- EP ID EP178125
- DOI 10.15407/spqeo19.02.183
- Views 113
- Downloads 0
Structural, electrical and optical investigations of Cu6PS5Br-based thin film deposited by HiTUS technique
Cu6.35P1.77S4.72Br0.15 thin film was obtained using the high target utilization sputtering onto c-cut sapphire substrates. X-ray diffraction studies show the film to be amorphous with some crystalline inclusions. SEM inv...
Luminescent properties of fine-dispersed self-propagating high-temperature synthesized ZnS:Cu,Mg
The influence of magnesium impurities on luminescent properties of ZnS:Cu,Mg using obtained by self-propagating high-temperature synthesis (SHS) has been investigated. Special attention was paid to changes of photolumine...
Wave equation solution for multilayer planar waveguides in a spatial frequency domain
Possibilities of new numerical method for solving the wave equation of multilayer planar waveguide were investigated. The method is based on the use of Fourier transform to the wave equation and its solution in the frequ...
Increasing the specularity of surface scattering of conduction electrons caused by adsorption of a hydrogen monolayer on the W(110) surface
Reported in this paper are the results of investigations aimed at scattering of conduction electrons at the tungsten (110) surface covered with hydrogen submonolayers, in which the effect of increasing the specularity of...
Micro- and nanostructuring of metal surfaces with polarized femtosecond laser pulses
Under irradiation of the surface of metals with femtosecond laser pulses, periodic surface micro- and nanostructures have been obtained. The dependence of orientation inherent to formed structures on direction of the ele...