This study focuses on manufacturing transparent Y₂O₃-Al₂O₃-B₂O₃ (YAB) glass-ceramics with excellent Photoluminescence (PL) characteristics and controlling tunable PL properties from blue to red through Eu³⁺ doping. The YAB glass-ceramics was manufactured by nucleating at the maximum nucleation temperature (T_I) of 784 ℃ and subsequently undergoing crystalline growth for 5 minutes to 4 hours at 900 ℃ to produce transparent glass ceramics. All processed samples exhibited Al₄B₂O₉ crystal phases, especially with a short 5 min heat treatment, resulting in Al₄B₂O₉ crystal phases below 590 nm, leading to optical transmittance levels similar to those of the parent glass. Moreover, PL analysis of Eu³⁺ ion-doped glass-ceramic samples revealed emissions at 592, 613, and 701 nm under UV excitation, with the 613 nm light exhibiting the main peak, and its intensity increasing with the Eu³⁺ ion doping amount. Additionally, through Commission International de l’Eclairage (CIE) coordinate analysis, it was observed that as the Eu³⁺ ion doping amount increased, the overall emission shifted from blue to red. This study demonstrates the successful fabrication of YAB glass-ceramics with transparency and superior PL characteristics, as well as effective control of luminescent properties through a 2-step processing method and Eu³⁺ ion doping.

Keywords: Glass-ceramic, Nano-crystal, Photoluminescence, Eu³⁺-doping, Al₄B₂O₉.