Systematic study on the quality of flux-grown Al2O3 single crystals for dosimetry applications

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Solid State Sciences Pub Date : 2025-02-01 DOI:10.1016/j.solidstatesciences.2025.107835

C. Rodrigues , J.G.M. Saraiva , A.P. Gonçalves , L. Peralta

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引用次数: 0

Abstract

Understanding the intricate effects of radiation at the microscale is pivotal for advancing cancer treatment strategies. This study focuses on the development of cutting-edge Al₂O₃-based passive dosimeters that are able to achieve microscale sensitivity and improve such description. Corundum (Al₂O₃) single crystals were grown isothermally with a Li₂O–MoO₃ flux system. Herein, we report the effects of flux composition, solute concentration, holding time and temperature on crystal quality, which directly impacts the detector's performance. Higher Li₂O concentration and higher holding temperature improved crystal transparency. Lower solute concentration led to larger crystals. Holding time did not appear to have a significant impact on crystal size or quality. Using a 15 % mol Li₂O – 85 % mol MoO₃ flux system with 6 % mol of Al₂O₃ and a holding temperature of 1180 °C, highly transparent Al₂O₃ single crystals up to 5 mm in size can be grown. The grown crystals show promising features for future radiation detection applications.

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.