Open access Jurnal SINTA 1
Utilizing CaCO3, CaF2, SiO2, and TiO2 particles to enhance color homogeneity and luminous flux of WLEDs
International Journal of Electrical and Computer Engineering (IJECE) · Vol. 10 No. 5 (2020)
- ISSN
- 2722-2578, 2088-8708
- Published
- 2020-10-01
- Publisher
- Institute of Advanced Engineering and Science
Abstract
The chromatic homogeneity and luminous efficiency are two crucial elements for determining a high-quality phosphor-converted LEDs (pc-LEDs). Thus, this paper provides essential information in choosing the particles to enhance lighting properties of high performance pc-LEDs. Scattering enhancement particles (SEP) such as CaCO3, CaF2, SiO2, and TiO2, are combined with yellow phosphor Y3Al5O12:Ce3+ and applied to the lighting devices. Initially, optical simulations are carried out with the support of LightTools program. Next, the Mie-theory is applied to calculate and confirm the results. The calculation subjects are SEPs scattering properties within the band 455 -595 nm. The scattering results of TiO2 suggest it is the optimal choice for pc-LEDs color quality in comparison to the other SEPs; however, it causes the luminous flux to decrease significantly along with the increase in its concentration. Besides, with the addition of SiO2 grains, we can accomplish higher lumen output at all particle sizes. Meanwhile, the application of 30% CaCO3 can decrease the CCT deviation by 620 K making CaCO3 the potential particle to be selected for chromatic quality and light output enhancement of pc-LEDs.
Collaboration network of the authors
16 authors · 45 co-authorship links · 44 across different organisations
Hover or tap a name to highlight its co-authors. Double-click to open the author's page.
- Ton Duc Thang University
- Industrial University of Ho Chi Minh City
- Thu Dau Mot University
- Posts and Telecommunications Institute of Technology
- Nha Trang University
- Ho Chi Minh City University of Industry and Trade
- Vietnam Academy of Science and Technology
- Other organisations
- Different organisations
- Same organisation
- Affiliation unknown
- Thicker line = more joint articles · bigger circle = more articles
Show as table
| Co-author | Organisation | Joint articles |
|---|---|---|
| Thuc Minh Bui | Nha Trang University | 9 |
| My Hanh Nguyen Thi | Industrial University of Ho Chi Minh City | 6 |
| Phan Xuan Le | Ho Chi Minh City University of Industry and Trade | 4 |
| Le Van Tho | Vietnam Academy of Science and Technology | 4 |
| Anh Tuan Le | Ton Duc Thang University | 3 |
| Huu Phuc Dang | Industrial University of Ho Chi Minh City | 3 |
| Hoàng Văn Ngọc | Thu Dau Mot University | 2 |
| Phung Ton That | Industrial University of Ho Chi Minh City | 2 |
| Nguyen Thi Kim Chung | Thu Dau Mot University | 2 |
| Sang Dang Ho | Ton Duc Thang University | 1 |
| Thanh Tùng Nguyễn | Thu Dau Mot University | 1 |
| Tri-Vien Vu | Ton Duc Thang University | 1 |
| Anh Tuan Le | Ton Duc Thang University | 1 |
| Nguyen Le Thai | Trường ĐH Nguyễn Tất Thành | 1 |
Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.