Journal article
Encapsulation of ZrO2 Nanoparticles for Improving Total Luminous Flux of White Light-Emitting Diodes
IEEE transactions on components, packaging, and manufacturing technology (2011), Vol.15(9), pp.1877-1885
09/2025
Metrics
9 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: SDGs from InCites
Abstract
In recent years, white light-emitting diodes (LEDs) have gained traction in general lighting and displays owing to their energy efficiency and high performance. Zirconium dioxide (ZrO 2 ) nanoparticles, characterized by high refractive indices, can significantly improve the luminous efficiency of white LEDs. When integrated into the encapsulation resin of white LED packaging (PKG), a small quantity of these nanoparticles effectively scatters the light emitted by the LED chip, thereby enhancing light extraction from the PKG. A ray-tracing simulation was employed to study the optical behavior of ZrO 2 nanoparticles within white LED PKG. Subsequently, the distribution of the ZrO 2 nanoparticles was optimized, and the mechanism underlying the enhanced luminosity was analyzed. Simulation results reveal that ZrO 2 nanoparticles, particularly in the 50 to 100 nm range, significantly enhance luminosity while reducing phosphor usage in white LED manufacturing.
Details
- Title
- Encapsulation of ZrO2 Nanoparticles for Improving Total Luminous Flux of White Light-Emitting Diodes
- Creators
- Tomoaki Kashiwao - Kindai UniversityRyo Takeda - Sumitomo Osaka Cement (Japan)Tomomi Ito - Sumitomo Osaka Cement (Japan)
- Publication Details
- IEEE transactions on components, packaging, and manufacturing technology (2011), Vol.15(9), pp.1877-1885
- Publisher
- IEEE
- Number of pages
- 1
- Grant note
- Sumitomo Osaka Cement Co., Ltd.
- Identifiers
- 991013304504702368
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article