Work

Eu 2+ -activated strontium-barium silicate: a positive solution for improving luminous efficacy and color uniformity of white light-emitting diodes

Year: 2020

Type: article

Abstract: In this research we have studied the lighting enhancement method by analyzing chromatic performance and luminous flux of light emitting diodes that produce white light. In order to achieve expected results, it is necessary to mix Eu 2+ -activated strontium-barium silicate (SrBaSiO 4 :Eu 2+ ) with its phosphor compounding, which has been demonstrated to have considerable influence on lighting performance. The results showed that with the gradually increasing concentration of yellow-greenemitting SrBaSiO 4 :Eu 2+ phosphor in LEDs devices, at 8500 K, the color homogeneity and the lighting output received a great improvement. The color quality scale, on the other hand, responded negatively to the increase in SrBaSiO 4 :Eu 2+ . The impact of SrBaSiO 4 :Eu 2+ on optical properties of WLEDs was confirmed. The final step to optimize SrBaSiO 4 :Eu 2+ usage in lighting development is to figure out a suitable amount of particles and optimize their size.

Source: Materials Science-Poland

DOI: 10.2478/msp-2020-0069

Authors: My Hanh Nguyen Thi, Phung Ton That, Nguyen Doan Quoc Anh

Institutions: Industrial University of Ho Chi Minh City, Ton Duc Thang University

Language: English

Topic: Luminescence Properties of Advanced Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funder: Foundation of Science and Technology Development of Ton Duc Thang University

OpenAlex ID: W3142014398

FWCI: 0.292

Cites: 22

Cited by: 3

Related to: 10