Enhanced performance of GaN-based thin-film flip-chip LEDs with reflective current blocking layers

Optics Express, Journal Year: 2024, Volume and Issue: 32(21), P. 36918 - 36918

Published: Sept. 19, 2024

To further enhance the performance of GaN-based thin-film flip-chip light-emitting diodes (TFFC-LEDs), we designed and fabricated two sets high-power blue chips with conventional reflective current-blocking layers (CBL) The CBL is composed SiO 2 , whereas consists a distributed Bragg reflector (DBR). We systematically characterized their optoelectronic performance. results indicate that at an injection current 350 mA, light output power (LOP) external quantum efficiency (EQE) TFFC-LEDs increased by 4.9% 5.7%, respectively, compared to CBL. TFCalc simulation reflectivity reached 99.15%. TracePro demonstrate can effectively light-extraction chip. believe structure provides significant guidance for fabrication high-efficiency LEDs.

Language: Английский

In Situ Microplastic Sers Sensor Based on Flexible AU Tapes

Published: Jan. 1, 2024

Language: Английский

Thermal modulation of surface-enhanced Raman scattering and plasmon-induced catalysis in Ag nanoparticle/ZnO microrod composites

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(68), P. 9046 - 9049

Published: Jan. 1, 2024

The varying effects of temperature on SERS and plasmon-induced catalysis have been demonstrated with experimental methods.

Language: Английский