61 research outputs found
Low-frequency noise properties of beryllium δ-doped GaAs/AlAs quantum wells near the Mott transition
STUDIES ON ULTRASTRUCTURAL IDENTIFICATION AND DISTRIBUTION OF PROTEIN-POLYSACCHARIDE IN CARTILAGE MATRIX
EVIDENCE FOR CHANGES IN PROTEIN POLYSACCHARIDE ASSOCIATED WITH THE ONSET OF CALCIFICATION IN CARTILAGE
FLUCTUATIONS OF OPTICAL AND ELECTRICAL PARAMETERS OF DISTRIBUTED FEEDBACK LASERS AND THEIR RELIABILITY
Light-Emitting Diode Degradation and Low-Frequency Noise Characteristics
Comprehensive investigation of phosphide-based red and nitride-based blue light-emitting diodes characteristics and physical processes that take place in device structure during aging has been carried out. Analysis of noise characteristics (the emitting-light power and the LED voltage fluctuations, also their cross-correlation factor) shows that investigated LEDs degradation is caused by defects that lead to the leakage current and non-radiating recombination increase in the active region or its interfaces. Appearance of the defects first of all manifests in noise characteristics: intensive and strongly correlated type optical and electrical fluctuations come out
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