Optical Assessment of Titanium Oxide Employed in Phosphor-Transmuted WLED Devices

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Authors: Phan Xuan Le, Nguyen Thi Phuong Loan, Nguyễn Đoàn Quốc Anh
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Abstract

Utilizing inexpensive PbO-B2O3-SiO2-ZnO glass as the host, a new environmentally friendly method for phosphor-transformed WLED utilizing Ce:YAG-doped glass and Titanium oxide (TiO2) was effectively created for this study. This method demonstrated good sintering behavior and elevated visible transparency with a sintering heat level reaching 750oC while avoiding influence on phosphor samples. The optic characterization of WLED can be simply adjusted by only modifying the temperature, incorporating dosage, as well as sample breadth to suit the mucous sintering for phosphor within glass (PwG). The perfect sample amount is regulated, reaching 5 wt.% of the end combination, and the most suited thickness of samples is discovered to be 0.8 mm. As a consequence, the optimum heating condition is sintered at 700oC within 40 minutes. The built-in PwG WLED displays an elevated illuminating effectiveness of 134.33 lm/W, associated hue temperature of 4696 K, and hue rendering index of 68.5. PwG’s improved heat quenching ability when combined with traditional silicone resin and TiO2 makes it clear that the glass ceramic substance used today is highly practical for use in WLED apparatuses.

Fields of Study & Subjects

Luminescence Properties of Advanced Materials Microwave Dielectric Ceramics Synthesis Glass properties and applications

Publication details

Journal / source
Science & Technology Indonesia
Volume
11
Issue
1
Pages
345–355
Publication date
2 January 2026
Language
EN