Key Technologies of Chip Core

Based on the innovative breakthrough of photon control technology for high-efficiency ultraviolet LED chips, the light output efficiency of ultraviolet LED chips has been more than doubled, leading peers by 50%

Improved luminous efficiency

Breakthrough achievement of doubling the light output efficiency of ultraviolet LED chips

Industry leading

Leading peers by 50% and winning first place in multiple national competitions

technological innovation

Pioneering Moth Eye Microstructure UV LED Chip and Total Space Reflection Technology

Innovative and High Efficiency Ultraviolet LED Chip Photon Control Technology

By utilizing the interface light regulation of moth eye microstructure and total spatial reflection structure, the light extraction efficiency of TE/TM mode is significantly improved

Interface moth eye microstructure morphology

The microstructure of moth eyes observed by electron microscopy (SEM) is covered with regularly arranged hemispherical microstructures, uniformly distributed, with a scale of 3 μ m

Comparison of Optical Transmission Characteristics
Flat structure: high transmission at small angles, sharply decreasing after 30 °
Moth eye structure: wide angle high transmission, significant transmission still exists at 90 °

Horizontal electric TE mode enhances light output

Compared to flat surfaces, the microstructure surface of moth eyes significantly improves light extraction efficiency, reduces total internal reflection, and allows more photons to successfully escape

Chip structure hierarchy
Sapphire AlN
n-AlGaN MQWs
EBL p-AlGaN

Technological achievements and intellectual property rights

Innovative achievements based on chip technology have received multiple national level recognitions and high recognition from industry experts

core patents

New type of deep ultraviolet light-emitting diode chip and its preparation method
Patent number: ZL201811375706.0
Full space ODR deep ultraviolet high-efficiency diode chip and its manufacturing process
Patent number: ZL201910693448.9

Representative paper

ACS Photonics
2018, 5.9: 3534-3540
Optics Express
2019, 27.20: 1601-1614

Award Achievements

Ministry of Industry and Information Technology 2023 Maker China National Optoelectronic Professional Competition
first place
The Hubei Division of the 2023 "Double Innovation" Competition organized by the Ministry of Science and Technology
first place

Summary of Technical Advantages

Pioneering Moth Eye Microstructure UV LED Chip Technology
Breakthrough in Total Space Reflection Technology
Significantly improve TE/TM mode light extraction efficiency
Effectively solving the problem of low light extraction efficiency in the active region of quantum wells
More than double the luminous efficiency
50% ahead of peers