1：Experimental Design and Method Selection:

Thick-film PiGs were fabricated via a screen-printing method with various phosphor layer structures. Green (Lu3Al5O12:Ce3+) and red (CaAlSiN3:Eu2+) phosphors were mixed, layered and patterned on a glass substrate. The chromaticity of each structured PiG was tuned to achieve a white LED by varying phosphor content and thickness.

2：Sample Selection and Data Sources:

Glass with a nominal composition of 5SiO2-40P2O5-40ZnO-5B2O3-10R2O (R=K and Na) was prepared using a conventional melt-quenching method. The glass was pulverized and sieved to obtain particle sizes less than 20 μm.

3：List of Experimental Equipment and Materials:

A planetary mill (Pulverisette 7, Fritsch, Idar-Oberstein, Germany) was used for pulverizing the glass. An organic vehicle based on an ethyl cellulose (EC) system was added to the mixtures to make a paste. The paste was screen-printed on the glass substrate.

4：Experimental Procedures and Operational Workflow:

The paste was screen-printed on the glass substrate and the film was then formed into a 7 X 7 mm square shape. The mixed, layered and pattern structured PiGs were fabricated according to the sequence depicted in Fig.

5：The films were heat treated at 450℃ for 2 hours to remove the organic vehicle and sintered at 550℃ for 30 minutes. Data Analysis Methods:

The emission spectra and the related various color conversion properties, including color coordinates, correlated color temperature (CCT), color rendering index (CRI), luminous efficacy (LE) and the color gamut of the mounted PiGs with different phosphor layer structures were examined and compared. Time-resolved photoluminescence (TRPL) measurements of the white LEDs with various phosphor layer structural designs were also obtained and compared.