AUTHOR=Hu Limin , Hu Yingying , Xia Yu , Peng Haiping , Wei Shaokun , Shi Yan 

TITLE=A high-efficiency red light-emitting module utilizing PLCC packaging for plant lighting applications

JOURNAL=Frontiers in Physics

VOLUME=Volume 13 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1641628

DOI=10.3389/fphy.2025.1641628

ISSN=2296-424X

ABSTRACT=With the increasing adoption of LEDs in plant lighting applications, reducing costs and enhancing light efficiency have emerged as key research priorities in this domain. Currently, light-emitting modules in LED plant lighting systems predominantly employ ceramic packaging, with PLCC packaging being seldom utilized due to its lower light extraction efficiency. This study introduces a novel approach by incorporating both planar optical encapsulant and the filler material in the assembly of red light chips, achieving a 22% improvement in light efficiency. By addressing this technical limitation, the design effectively reduces costs, resulting in a cost-effective light-emitting module with high light extraction performance. Furthermore, the design was tested with multiple chips, demonstrating significant potential for further optimization and advanced design applications.