Open AccessThe effect green YF3:ER3+,YB3+ phosphor on luminous flux and color quality of multi-chip white light-emitting diodes
Author(s) -
My Hanh Nguyen Thi,
Nguyen Thi Phuong Loan,
Thuc Minh Bui,
AnhTuan Le
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v11i6.pp4810-4816
Subject(s) - phosphor , light emitting diode , diode , luminous efficacy , chemistry , materials science , optoelectronics , nanotechnology , layer (electronics)
The purpose of this paper is to demonstrate the advantages of the green phosphor YF 3 :Er 3+ ,Yb 3+ combined with multi-chip package to the enhancement of lighting efficiency of modern WLEDs. In an effort to improve the quality of WLEDs and create a new generation of lighting device, green phosphor YF 3 :Er 3+ ,Yb 3+ is added into the phosphor compounding of the WLED package to improve the color quality and lighting capacity. Through experiments, WLEDs with YF 3 :Er 3+ ,Yb 3+ green phosphor has shown improved results in lighting performance specifically in color homogeneity and light output of WLEDs in the ACCT range from 5600-7000 K. However, the color quality scale (CQS) declines gradually. Therefore, if the appropriate concentration and size of YF 3 :Er 3+ ,Yb 3+ are determined, the performance of MCW-LEDs will be enhanced and become more stable.