Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (08): 1288-1290.doi: 10.3866/PKU.WHXB20070829

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Microwave-assistant Fabrication of Y2O3:Er3+ Particles

JIA Ruo-Kun; HE Dong-Liang; DAI Jie; YANG Wen-Sheng; BAI Yu-Bai   

  1. College of Chemical Engineering, Northeast Dianli University, Changchun 132012, P. R. China; College of Chemistry, Jilin University, Changchun 130023, P. R. China
  • Received:2007-03-09 Revised:2007-05-07 Published:2007-08-03
  • Contact: JIA Ruo-Kun; BAI Yu-Bai E-mail:jiaruokun@mail.nedu.edu.cn, yubai@mail.jlu.edu.cn

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Abstract: Erbiumdoped Y2O3 (Y2O3:Er3+) particles were prepared by microwave method and sol-gel method. Using microwave method the calcining temperature was decreased to 600 ℃. Two upconverting emission bands centered at 550 and 660 nm were presented under 980 nm laser excitation. Samples prepared by microwave method showed a strong red emission and a week green emission, while samples prepared by sol-gel method showed a strong green emission and a week red emission. The results showed that microwave promoted the formation of S6 symmetric structures and the S6 symmetric structures promoted the red emission.

Key words: Upconversion, Microwave preparation, Y2O3