Enhanced Crystallinity and Luminescence Characteristics of Hexagonal Boron Nitride Doped with Cerium Ions According to Tempering Temperatures

Materials

Donghyun Hwang¹  Chang Sik Son¹  Jae Yong Jung¹  Hee-Ryoung Cha²  Jung-Goo Lee²  Young-Kuk Kim²  Juna Kim³  Yang Do Kim³ 

[1] Division of Materials Science and Engineering, Silla University, Busan 46958, Korea;Powder & Ceramics Division, Korea Institute of Materials Science, Changwon 51508, Korea;School of Materials Science and Engineering, Pusan National University, Busan 46241, Korea;

关键词: hexagonal boron nitride;    photoluminescence;    cerium;    anti-counterfeiting;    crystals;   

DOI  :  10.3390/ma14010193

来源: DOAJ

【 摘 要 】

Hexagonal boron nitride was synthesized by pyrolysis using boric acid and melamine. At this time, to impart luminescence, rare earth cerium ions were added to synthesize hexagonal boron nitride nanophosphor particles exhibiting deep blue emission. To investigate the changes in crystallinity and luminescence according to the re-heating temperature, samples which had been subjected to pyrolysis at 900 °C were subjected to re-heating from 1100 °C to 1400 °C. Crystallinity and luminescence were enhanced according to changes in the reheating temperature. The synthesized cerium ion-doped hexagonal boron nitride nanoparticle phosphor was applied to the anti-counterfeiting field to prepare an ink that can only be identified under UV light.

【 授权许可】

Unknown