Degradation behavior of deep UV-LEDs studied by electro-optical methods and transmission electron microscopy
Sign Up to like & getrecommendations! Published in 2019 at "Current Applied Physics"
DOI: 10.1016/j.cap.2018.10.019
Abstract: Abstract Degradation mechanism of 265-nm deep ultraviolet light emitting diodes (UV-LEDs) has been investigated by means of electroluminescence, current-voltage measurement, capacitance-voltage measurement, and transmission electron microscopy (TEM) equipped with energy dispersive X-ray spectrometer (EDAX). It… read more here.
Keywords: microscopy; deep leds; transmission electron; degradation ... See more keywords
Milliwatt power 233 nm AlGaN-based deep UV-LEDs on sapphire substrates
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0015263
Abstract: Deep UV-LEDs (DUV-LEDs) emitting at 233 nm with an emission power of (1.9 ± 0.3) mW and an external quantum efficiency of (0.36 ± 0.07) % at 100 mA are presented. The entire DUV-LED process chain was optimized including the reduction… read more here.
Keywords: deep leds; 233 algan; power 233; milliwatt power ... See more keywords
Producing deep UV-LEDs in high-yield MOVPE by improving AlN crystal quality with sputtered AlN nucleation layer
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Semiconductors"
DOI: 10.1088/1674-4926/38/11/113003
Abstract: High-quality AlN layers with low-density threading dislocations are indispensable for high-efficiency deep ultraviolet light-emitting diodes (UV-LEDs). In this work, a high-temperature AlN epitaxial layer was grown on sputtered AlN layer (used as nucleation layer, SNL)… read more here.
Keywords: quality; layer; high yield; sputtered aln ... See more keywords
Reliability Analysis of AlGaN-Based Deep UV-LEDs
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12213731
Abstract: The current pandemic crisis caused by SARS-CoV-2 has also pushed researchers to work on LEDs, especially in the range of 220–240 nm, for the purpose of disinfecting the environment, but the efficiency of such deep… read more here.
Keywords: deep leds; reliability leds; reliability; algan based ... See more keywords