Open access Jurnal SINTA 1
The Effects of ZnO particles on the color homogeneity of phosphor-converted high-power white LED light sources
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
Color homogeneity is one of the goals to continuously improve WLED. Among the methods for enhancing the color uniformity of WLEDs, improving scattering in phosphor layer is considered to be the most effective. In this paper, ZnO is used for that purpose. The results show that ZnO particle size significantly affects scattering in the phosphor layer, which is a vital factor to analyze scattering, scattering sand surface, scattering coefficient and scattered phase function C_sca (D,λ), μ_sca (λ) and ρ(θ,λ). In addition, the concentration of ZnO was also analyzed with values from 2% to 22%. Color homogeneity depends not only on size but also on the concentration of added ZnO. Therefore, color homogeneity control is the control of ZnO size and concentration. The proposed result is 10% ZnO for the highest lumen of LED. With 14% and 500 nm of ZnO particles, ΔCCT reaches the lowest. Depending on the production needs, manufacturers can choose the most appropriate way. However, with both required lumen and ΔCCT, 14% ZnO is suitable for ZnO sizes.
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.