1 June 2022
SiC patent analysis shows firms building vertically integrated supply chains
Chinese patent applicants span the whole supply chain
1 June 2022
Speedy, durable, retentive GaN non-volatile memory
Researchers use a bipolar junction barrier to reduce degradation stresses.
1 June 2022
Gallium oxide on strontium titanate
Epitaxial growth on strontium titanate could lead to the seeding of thicker layers of Ga2O3 for high-power electronics and UV optoelectronics on silicon.
1 June 2022
High-Al-content p-AlGaN with 17.5meV activation energy
Using a superlattice p-contact structure results in 57% more light output power from a 280nm-wavelength deep-UV LED at an injection current of 100mA.
1 June 2022
UV-C LEDs with external quantum efficiency up to 8%
Achieving improved performance from growth on ‘face-to-face’ annealed sputtered AlN templates on sapphire.
1 June 2022
Microcavity QCL in CW operation at +5°C
Potential applications include photonic ICs and sensing outside the laboratory.
4 May 2022
Optimizing InGaN templates
LED on template with effective 8.5% indium content shows 1.9x improved efficiency over conventional device.
4 May 2022
N-polar InGaN LEDs with record output power
UCSB has used an inverted structure with the p-GaN layers buried beneath the quantum wells to yield better-quality p-GaN at a higher growth temperature.
