[en] Eu³⁺-doped Zn₂SiO₄/ZnO phosphor-based composites were prepared using a simple thermal treatment method. The effect of Eu³⁺ content on the morphological and photoluminescence performance was examined using XRD, FTIR, FESEM, UV-Vis, and PL measurement. The existence of two crystal phases by the XRD measurement confirmed the development of zincite (ZnO) and zinc silicate (Zn₂SiO₄) crystal phases. Besides, the FTIR spectra and FESEM micrograph support the XRD result by verifying ZnO and Zn₂SiO₄ phase formation through the existence of their characteristic Zn-O-Si and Zn-O vibration modes with the decrement of SiO₄ broad absorption band as the Eu³⁺ concentration increased. Also, UV-Vis absorption spectra presented by the composite samples displayed a broad absorbance that confirmed the addition of Eu!³⁺ ions in the ZnO/Zn₂SiO₄ has caused the absorption edge of the curve having red shift. The photoluminescence spectrum showed red shift light emissions at 485 and 615 nm, associating with the Zn₂SiO₄ crystal phase, in addition to the ZnO crystal phase. From the interesting results achieved, this ZnO/Zn₂SiO₄ phosphor-based composite material can be a potent candidate in optoelectronic applications. (author)